So Sweet, So Dead (1972)

A New York suburban couple's marriage goes dangerously awry when the wife indulges in an adulterous fling.

Wes Block is a detective who's put on the case of a serial killer whose victims are young and pretty women. The murders are getting personal when the killer chooses victims who are acquaintances of Block. Even his daughters are threatened.

A razor-wielding serial killer is on the loose, murdering those around Peter Neal, an American mystery author in Italy to promote his newest novel.

A couple’s romantic vacation at a secluded lakeside estate is upended when they are forced to share the mansion with a mysterious and attractive couple. In this darkly hilarious and seductive horror story, a dream getaway spirals into a nightmarish maze of sex, lies, and manipulation, bringing terrifying secrets to light and triggering a bloody battle for survival.

Between a four-year gap in the murder of a young girl, the daughter of a well-known sculptor is discovered dead, and her parents conduct an investigation, only to discover they are in over their heads as the body-count keeps rising.

A tough police detective escapes from custody after being framed and arrested for the murder of his ex-wife, and must now find the real killer and prove his innocence.

An ex-prisoner moves to an old apartment, where one gets to see in the middle of a domestic problem between a police officer, his wife and his daughter. When he tries to intervene, he will be caught in a mysterious curse.

An Italian police inspector matches wits with a powerful European drug ring. As he comes closer to the top of the underworld organization, his odds of survival decrease.

A woman becomes very curious about one of her psychiatrist husband's inmates, a man who was found guilty in the murder and disfigurement of his former wife.

When reclusive Franklin cheats on his partner with a mysterious girl he meets on a dating app, it becomes the start of a deadly obsession.