Matt, Daniel and Paul were childhood friends. Now in their thirties, they've lost touch and have only one thing in common: their mothers. Little do they know that, having spent a cardless Mother's Day discussing how their emotionally dysfunctional offspring should be settling down, Carol, Gillian and Helen have decided to pay their wayward sons a visit. On the same day, they turn up on their sons' doorsteps, uninvited and unannounced. Their plan is to reestablish the mother-son bond by moving in for one week. Just a week. Surely that's not a lot to ask...