A boisterous romantic comedy about a bridegroom who wakes on his wedding morning in his own bridal suite and finds a strange girl in bed beside him. In the depths of his post stag-night hangover, he can’t remember her. Worse during the ensuing panic to get the stranger dressed and out of the way, the bride arrives and the girl is trapped in the bathroom. The only way out of the dilemma is to persuade the best man to pretend that the hidden girl is his girlfriend. Then the problem is that the best man’s real girlfriend has to be kept ignorant of the fact. By the time the bride’s parents and half the hotel staff get in on the act, the chaos reaches epic proportions!