They say the friends you make at college are with you for life, and for Tamsin, Reagan, Sarah and Freddie that certainly seems to be the case. With student life stretching ahead of them, they bonded years ago over too many bottles of wine and great gossip; ill-fated love affairs and essay deadlines were the only clouds on their horizon.
Although the four women have little in common this seems to make them greater friends, and they swear they'll always be there for one another . . . but twenty years is a long time to keep a promise.
And so, when tragedy plays a hand, their friendship is put to the ultimate test. Can they put their troubles and differences aside and remember the simple joy of their younger selves? After all, friends should always come first, shouldn't they?