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Ben (Joel Moore) and Marcus (Deon Richmond) are college students in New Orleans, enjoying Mardi Gras, when they decide to go on a boat tour of an allegedly cursed bayou. Meeting up with several other tourists, including quietly beautiful Marybeth (Tamara Feldman), they are entertained by their guide Shawn (Parry Shen), who regales them with tales of a ghostly serial killer who wanders the swamp. They laugh off the stories -- until someone, or something, starts picking off members of the group. Wikipedia