Paul is a regular guy who is engaged to marry Karen. Shortly before the wedding, Paul's friends throw him a bachelor party. Paul strikes up a conversation with one of the dancers, Becky, and the next morning, he wakes up bleary-eyed with a massive hangover -- and Becky in bed next to him. Karen comes over and Paul attempts to explain some incriminating evidence with a few white lies, but this messy situation gets messier when Paul runs into Becky at a pre-wedding family get-together ... and discovers she's Karen's cousin.