When small time Irish hood, Shawn Murphy, goes to work for Lawrence, Massachusetts Mafia boss Sonny Pentola, he soon finds he might have gotten more than he bargained for. Shawn quickly earns rank and Sonny's trust when he saves Sonny from an assassination attempt. Sonny makes him a trusted liaison in a large development deal with Irish associates in Boston.
A group of friends seal themselves inside a secluded Cape Cod vacation home after a mysterious orange fog leaks from an old nearby factory. Once trapped, they quickly learn there is no escape.