Ace assassin Frank Kitchen is double crossed by gangsters and falls into the hands of rogue surgeon known as The Doctor who turns him into a woman. The hitman, now a hitwoman, sets out for revenge, aided by a nurse named Johnnie who also has secrets.
After a pawn shop robbery goes askew, two criminals take refuge at a remote farmhouse to try to let the heat die down, but find something much more menacing.
A brilliant but deranged neurosurgeon becomes obsessively fixated on a judge's daughter. With the help of an escaped criminal whose face he has surgically deformed, the mad man lures her, her father, and her fiancé to his isolated castle-like home, where he has created a torture chamber with the intent of torturing them for having 'tortured' him.
