A woman's lover poisons her cruel husband, a rich businessman, in front of her. She becomes more terrified when she finds the lover dead as well. A police detective suddenly shows up at her door.

The wife of a wealthy industrialist finds herself caught-up in a web of intrigue & murder which was created by her own deceit. When she tries to escape the results of her actions, she too falls victim to deception.—Anonymous

Jaclyn Smith's the young unhappily married wife of a wealthy, cold-hearted tycoon (Mike Connors). Her lover, (James Franciscus) kills him, but then disappears. Detective Robert Mitchum is brought in to investigate. As the detective probes, the wife becomes increasingly nervous; she's hiding what she knows about what really happened and seems to be on the brink of an emotional breakdown. Filmed on-location in Arizona with beautiful scenery throughout. Nice plot twist and a good cast help make this film an enjoyable way to spend a couple of hours.—cielomountianvista

Nightkill stars Robert Mitchum as a world-weary private eye probing the case of a missing industrialist (Mike Connors). He is hired by Jaclyn Smith, the anxious wife of the missing man. What Jaclyn fails to inform Mitchum is that she knows full well her husband's whereabouts. After all, she was the one who helped her lover James Franciscus dispose of her wealthy hubby.—Anonymous