Rock band «Bad Math» just signed their first contract with a label and the guys decided to celebrate the event, arranging a grand party. But as it usually happens, everything went out of control. House is flooded hundreds of strangers, someone brought drugs, alcohol flows like water, women of easy virtue and drunken strangers are everywhere. Waking up the next morning, the heroes discover the effects of the wild night: the house is in ruins, some members of the group disappeared, contract with the label is gone, and a dead body floats in the pool. As if that was not enough, they do not remember anything that happened that night. Under the influence of a terrible hangover, the guys come to the conclusion that the only way to remember everything is to repeat it again.