And the gaggle of fish-fodder humans is just as hard to keep track of – consisting as it does of Tulane University students Sara, Nick, Maya, Dennis, Beth, Malik and Blake. (That’s, respectively, Sara Paxton, Dustin Milligan, Alyssa Diaz, Chris Carmack, Katherine McPhee, Singua Walls and Chris Zylka – whew!).

These party-hardy collegians head off to a palatial house on Louisiana’s Lake Crosby – a saltwater lake, mind you; otherwise there’d be no plot.

There’s no cellphone reception there, and Sheriff Sabin (Donal Logue) is a slow-witted drunk. So the snacking on limbs and occasional full-body meal begin apace.

The big twist – such as it is – turns out to be that two bayou rednecks straight from central casting, Red (Joshua Leonard) and Keith (Damon Lipari), have been treating the lake as their own private aquarium, introducing a variety of shark species just because they like to see folks get munched up.

Can Sara and Nick, the two smart virgins, outsmart their piscatory predators? Even the sharks hardly seem to care.

The film contains excessive gore, rear male and partial upper female nudity, sexual banter, as well as frequent profane, crude and crass language. The Catholic News Service classification is O – morally offensive. The Motion Picture Association of America rating is PG-13 – parents strongly cautioned. Some material may be inappropriate for children under 13.

Jensen is a guest reviewer for Catholic News Service.