An aspiring actor persuades Harry to protect him from a former syndicate boss who is convinced the young man killed his daughter.

A criminology student seems less interested in proving his innocence of two sex murders than in observing Harry's investigative technique.

Manny Quinlan, Harry's old friend on the San Diego police force, is murdered when he comes to Los Angeles to take his addicted niece back home.

Student criminologist Lester Hodges returns to bedevil Harry when diamond smugglers kidnap Harry's stewardess friend Sue, and force him to make an unexpected trip to Paris.

Harry investigates the nursing home where his mechanic's father died suddenly, and Sue asks him to help some kids find their missing father.

The only woman who can clear Harry of a murder charge refuses to testify.

A woman's former boyfriend returns from prison and wants the old suitcase he left with her, which he claims is worth $300,000.

Harry investigates the murder of a fellow private eye in Chinatown.