"Knock Three-One-Two," producer Maxwell Shane's third entry, features Joe Maross (a busy but little known TV actor) as compulsive gambler Ray Kenton, whose long suffering wife Ruth (the always competent Beverly Garland) has decided once and for all to stop financing his losses. Meanwhile, a serial killer dubbed 'The Silk Stalking Strangler' (Meade Martin) is on the loose, and Kenton's neighbor, a simple-minded newsstand clerk named Benny (Warren Oates) feels the compulsion to go to the disbelieving authorities and confess to the killings despite his proved alibi of innocence. Ray soon bumps into the maniac killer, and after getting a 24 hour reprieve from his underworld pals, desperately decides to gamble on the idea of leading the killer to his own home to strangle the attractive Ruth, using his friend Benny to establish an alibi for himself. Charles Aidman, later seen in "The Terror in Teakwood," does a sympathetic turn as Ruth's boss, while Warren Oates would later appear in "The Hollow Watcher." Joe Maross and Beverly Garland would be reunited 14 years later in a 1975 episode of KUNG FU, "Battle Hymn."