But when Ella finds a magazine article with a list of men they should date before they're 21 (someone who's been on telly? Check; someone who's got tattoos? Check;) they vow to complete the list before finishing university and set about it with a lot more enthusiasm than they do their studies ... but will any of them end up with a full house? And when a secret from their first year comes out, it looks as if some of them might not be completing university, never mind the list ...