Columbo season 4←Columbo season 3 Columbo season 5→
Columbo season 4 episodes list:
A health club owner kills his partner who is about to uncover a fraud and makes it look like an accident
Brilliant photographer Paul Galesko plans to murder his domineering wife, Frances, and pin the crime on an ex-convict named Alvin Deschler. His plan is to make it look as if Alvin kidnapped his wife and killed her before picking up the ransom money.
The head of a military school kills one of the governors by sabotaging the gun which is used on founders day.
While holidaying on board a cruise liner, Columbo helps capture the killer of the singer with the ship's band.
An inventor video tapes his mother-in-law's death, and then replays it back to the security guard, to give himself an alibi.
A doctor kills the husband of the woman,he is having an affair with. but is seen leaving the house by a witness who is happens to be blind.