McMillan & Wife (1971)

S5E5 The Deadly Cure

Title: The Lethal Remedy Plot: After sustaining injuries during a botched drug operation, Mac finds himself in the hospital for treatment. While recovering, he witnesses a patient being suffocated, which sparks his curiosity. Determined to uncover the truth behind the incident, Mac begins to piece together the mystery, leading him down a dark path of deception and danger.