Shark Lake (2015)

A policewoman and a biologist spring into action when sharks go on a deadly rampage in Lake Tahoe. When a black-market exotic species dealer named Clint, is paroled from prison, something he let loose begins to make its presence known. Swimmers and land-lovers alike begin to become part of the food chain at an unbelievable rate. Meredith and the new man in her life, a biologist named Peter, begin to investigate these brutal attacks and discover that they're not just hunting one eating machine, but a whole family of them.