I’m Lucy. Out-of-work actress, part-time princess impersonator, Dorito enthusiast. Oh, and I’ve lost my memory. I got knocked off a bicycle on my way to a children’s party, dressed as Elsa, and accidentally flashed my thong. Now, in my head, it’s 2009 and I’m 17 years old. Not nearly 30 and starting to wrinkle. By this stage of my life, I thought I’d be married, with kids and a mortgage. Instead, I’ve got a phone full of dick pics. As I make my way through my contacts list - and try to jog my memory - I can’t help asking: Am I allergic to love? Commitment? Men?

It's Krystal's 29th birthday. This year:  Her boyfriend finally proposed after six years of dating (only for her to find out he cheated on her for five and a half of them). She landed her dream job as a writer at Craze magazine (which swiftly fell into administration). She moved into her dream flat overlooking the city (just for the pipes to explode making the place unlivable) As she mourns everything wrong in her life, her best friend mutters the dreaded words: Saturn Return.

I thought I was sorted on the life front. I was a heart surgeon with a loving partner and two gorgeous little girls. Except my husband’s version of "loving" is lying, cheating, and sleeping his way around London. Which means I definitely deserve a refund. Unfortunately, moving on isn’t that simple. Just because I know how to operate on a heart doesn’t mean I know how to fix my broken one. Plus, I lost the receipt for him years ago, so I’m definitely getting shortchanged. But now that I’m single, am I ready to mingle?

Friends. You can't live with them - and you can't live without them. Or so Matt is discovering. His best mate is getting married, leaving him high and dry. No flat-mate - and no girlfriend. Then he remembers Helen (H to her friends). H has no life outside her brilliant career - and all her best friend Amy wants to talk about is her wedding. Which suits Stringer, because catering the wedding is his first real chance to prove himself. The last thing he needs is to fall for one of the bride's friends, Susie, particularly because she's sworn off men while she sorts out her life.... 

Mackie, Edele, Alex and Nat are navigating their chaotic and confusing 20s together. They have jobs and pay their own rent (well, most of them) but don't know how to bleed radiators, defrost a freezer or test the smoke alarms. With breakups to deal with and major decisions to make, life can get messy, especially when they're still trying to get the hang of this 'being a grown-up' thing. Welcome to the joys of being almost adults.

While her friends join the 'Wife Club' one by one, Poppy feels like that part of her life is done and dusted. Already married and divorced she's not desperate to go through all that again. But what if her divorce never actually went through? After a shock revelation Poppy not only discovers she is still married, but that Zac is about to have his second wedding!

Addie and her sister are about to embark on an epic road trip to a friend's wedding in rural Scotland. The playlist is all planned, and the snacks are packed. But, not long after setting off, a car slams into the back of theirs. The driver is none other than Addie's ex, Dylan, who she's avoided since their traumatic break-up two years earlier. Dylan and his best mate are heading to the wedding, too, and they've totalled their car, so Addie has no choice but to offer them a ride. 

When I got pregnant, Will and I didn’t have a clue what we were signing up for. It turns out that there’s loads we weren’t warned about. But even if I feel like I’m waiting for my motherhood powers to come in the post, at least I’ve got Will. Our old life - festivals, sambuca shots, an actual sex life - might be a distant memory, but we can get through anything together, can’t we? At least that’s what I thought until, one day, Will walked out on us.... If I’m on my own (apart from Siri, obviously) can I do this whole parenting thing? 

Is it possible to freecycle love? Modern dating is hard, especially when all you meet are liars, oddballs, men who wear Superman pants and men who live with their mums. So why not date someone who already comes preapproved? Just because your friend's ex wasn't right for her doesn't mean that he won't be right for you. That's Marnie's new plan for herself and her three best friends - perennially single Helen, recently divorced Rosa and cynical lawyer Ani.

Recently dumped by her boyfriend of 10 years, Bell is struggling to move on with her life - and surrender the fleecy pyjamas she’s been living in since January. Haunted by #blessed on social media, she can’t help but compare her life to those she follows online, wondering where she is going wrong. In the world of social media, Millie is the successful online influencer @mi_bestlife. But in real life she’s just a regular single mum trying to make ends meet, while fending off the younger competition and tenacious internet trolls. 

Emily is raising two tiny feminists, building her freelance career and navigating life as a newly single mum - and feels like she's failing horribly. Tania just wants her other half to do his fair share - as long as it's done her way. But being right isn't nearly as much as fun as being in it together.... Helen has almost got family life sorted: a routine that suits them all, most days. Until her own mum turns up and turns calm into chaos.

When Olivia Tennyson - or Ollie to her friends - was 16, she wrote a Dream List of all the things she wanted for her life, including a happy marriage and a family. But at 29, Ollie is single, living at home with her over-protective and manipulative mother and is feeling like her dreams are getting further out of reach. It’s time for a change. It’s time to take matters into her own hands.

Twenty years ago, Carly Cooper went on an epic quest to track down all the men she’d ever loved and lost in the hope that one of them was her Mr Right. Now, two decades and two teenage sons later, she thinks she might have got it all wrong. As the years have passed, lots of things have changed, leaving Carly asking, ‘What now?’ With a divorce and an empty nest on the horizon, Carly sets off once more to Los Angeles with her band of trusty girlfriends, to find the carefree, wild and adventurous Carly Cooper that she used to be.

You know that ‘till death do us part’ bit in the wedding vows? Well Zoe Dalton believed it. She walked up the aisle thinking that she was strolling to her happy ever after. One month later, her heart is in pieces, she’s returning the wedding gifts and there’s a husband-shaped space next to her in bed. He’s gone, after Zoe discovered a devastating secret. But Zoe has lost so much more than her marriage. Her three sisters are not only her siblings, they’re her best friends, too. Now she’s discovered that one of them may have been the reason her husband betrayed her. 

Seriously, why do guys on dating apps think I want a picture of what’s in their pants? I could open an art gallery with the collection I’ve got. Zoe really doesn’t want to die alone and surrounded by cats. But it’s not looking good: she’s had sex precisely twice in the last year, and her feline friend isn’t the kind of male company she wants in bed.