Jordan naj bi se poročila s Petrom. Pred poroko pripravi dekliščino, na kateri po pomoti spije dvojno mero ruma in do jutra se ne spomni ničesar več. Zjutraj se znajde v hotelski sobi priljubljenega igralca z velikim diamantnim prstanom na roki. Ugotovi, da je postala gospa Swift. Matt jo prepričuje, da se ni nič zgodilo in da bosta zakon v nekaj dneh razveljavila, zato Jordan ničesar ne pove Petru. Mattov agent pa odlaša z razveljavitvijo poroke, saj v tem vidi dobro reklamo pred bližnjo premiero Mattovega novega filma.
Straight-laced Jordan (Martin) is about to marry her perfect match, Peter (Snedeker) a clean-cut ambitious attorney. Before she walks down the aisle, Jordan and her best friends, Claire (Adrienne Frantz) and Jessica (Daphne Duplaix), head to Vegas for a bachelorette party. Determined to get Jordan to loosen up, Claire steers the girls to the hottest nightclub for a few drinks and some fun, because what happens in Vegas stays in Vegas, right? But when Jordan wakes up the next morning unable to recall the night before, she panics when she finds she's in movie star Matt's (Ethan Erickson) hotel suite with a gigantic diamond on her finger and a marriage certificate lying nearby. Before Jordan can have the marriage annulled and put this nightmare behind her, the impromptu wedding explodes into a publicity stunt fueled by Matt's manager Eric (Bruce Nozick) to promote his latest movie. With her wedding day approaching, Jordan finds herself more confused than ever when she starts falling in love with the movie star she's married to instead of the fiancé she thought was her perfect match.