When Ally Darling asks her boyfriend to accompany her to her sister's wedding, he refuses, saying it sounds too serious if her parents will be there. While with her friends on a night out, she discovers that if a woman has had over 20 partners, they're 96% more likely to stay single for the rest of their life.
Ally is alarmed by this, as she's quickly approaching that figure; taking drastic measures Ally decides to meet up with all her previous boyfriends, fearing she may have missed 'The One' and vows not to sleep with another guy until she finds him.
Helping her out is her neighbour Colin. After getting 'locked out' of his apartment by his then girlfriend, he asks to use Ally's phone and the two become friends. He helps Ally's quest by tracking down her previous ex's and accompanies her to her sister's wedding. In return Ally helps Colin to avoid his ex and along the way, she finds out that maybe 'The One' is closer than she thought.
Directed by: Mark Mylod
Starring: Anna Faris, Chris Evans, Zachary Quinto, Martin Freeman, Mike Vogel, Chris Pratt, Andy Samberg, Anthony Mackie, Aziz Ansari, Thomas Lennon, Ari Graynor, Joel McHale, Ivana Milicevic, Dave Annable, Oliver Jackson-Cohen, Heather Burns, Ed Begley Jr., Tika Sumpter,