A neurologist visits an incarcerated serial killer living in exile to study his brain and discovers the horror that lurks behind his violent impulses.
On the 4th of July, a rookie female cop partners with a veteran detective to save the life of a high-school student from a radicalized serial killer.
An agoraphobic young man (Henry), living with a Youtuber and struggling actor (Eric), hacks the webcams of young women, and suspects that one of them is a serial killer.