After committing a series of multiple murders, a neurologist visits an incarcerated killer, living in exile. She studies him and his brain and discovers the horror that lurks behind his violent impulses.
An ambitious lawyer kills her gardener by mistake, fearing her chances with the law and the impact this will have on her career at a prestigious firm, she turns to her best friend to help her get rid of the body.
When an image-conscious wild child takes a strange new drug at a party, she undergoes a shocking transformation. Desperate to reverse the effects of the drug, she is horrified to discover that she has become the key to saving the human race.