It's a dark night on an empty road Mike Hammer is heading back to New York when a tall blonde jumps from nowhere into the beam of his headlights He agrees to give her a lift and continues on his way Suddenly he's driven off the road, knocked out and the car is pushed off a cliff Mike survives the ordeal, the woman doesn't Hammer discovers that the woman was a witness for the FBI and her murder has all the hallmarks of Mafia involvement Despite warning from the Feds and the local police, Mike takes it upon himself to investigate the death of this beautiful woman and avenge her murder