S4.E1 ∙ The Popskull Mon, Jun 27, 1960 A reputable bar owner is being forced to sell rotgut whiskey until the owner's wife hires Diamond to intervene. 7.4 /10
S4.E2 ∙ And Whose Little Baby Are You? Mon, Jul 04, 1960 Someone abandons a baby in Diamond's apartment, putting the detective in the middle of a custody battle. 7.1 /10
S4.E3 ∙ Fallen Star Mon, Jul 18, 1960 Diamond investigates the apparent suicide of an acquaintance who was a famous singer. 7.5 /10
S4.E4 ∙ Coat of Arms Mon, Aug 01, 1960 An Italian immigrant hires Diamond to find the man who beat and threatened her over the possessions of a late tenant. 7.2 /10
S4.E5 ∙ Double Trouble Mon, Aug 08, 1960 A diplomat hires Diamond to find his missing fiancé, a nightclub singer who has vanished into thin air. 7.8 /10
S4.E6 ∙ The Lovely Fraud Mon, Aug 15, 1960 An insurance company hires Diamond to investigate the hit-and-run of a dancer who had just taken out a policy on her legs. 7.5 /10
S4.E7 ∙ Accent on Murder Mon, Aug 22, 1960 The detective gets a surprise when he discovers that the young lady he's been hired to protect is a poodle. 7 /10
S4.E8 ∙ East of Danger Mon, Aug 29, 1960 Diamond investigates when an antique dealers discovers that his warehouse is being used to store heroin. 6.5 /10
S4.E9 ∙ Running Scared Mon, Sep 05, 1960 Diamond is hired by a man who suspects his daughter-in-law of wanting to commit suicide. He finds her only to discover that she has hired someone to kill her. 7.6 /10
S4.E10 ∙ The Mouse Mon, Sep 12, 1960 Diamond is hired by a woman who is being threatened by a man she saw die 15 years earlier. 7 /10