Ally is unlucky with her boyfriends and always ends up with a loser. When she hears at a hen party that those who have been with more than 20 men never find the right one, she hunts herself down when she is up to 20. Obsessed with the idea of not getting up to 21, she starts looking for her old boyfriends to see if it wasn't the case that one of them was the right one. She enlists the help of her neighbor in return for helping him get rid of girls he brought home overnight.
I was a bit skeptical and of course there are some dubious moments in this one, like why the number only applies to her and not him etc. But it picks up and becomes funny and works romantically.
