As he hides, Cobbett listens to radio updates on the search and becomes increasingly arrogant, believing he has outsmarted the authorities. He even scripts Mary's answers during a phone call with her mother to ensure no suspicion is raised.

"Alfred Hitchcock Presents" You Got to Have Luck (TV ... - IMDb

In reality, Mary was a skilled lip-reader who could only understand people when facing them. Her mother, hearing her daughter respond to a voice she couldn't actually hear, knew she was being coerced and alerted the police. Where to Watch

“Cassevetes gives a very strong, modern performance as an escaped convict who invades a young woman's home. He's menacing, and there are about as many allusive sexual threats as they could show in those days.” IMDb

“One of my favorite episodes of Season 1... The ending makes me want to re-watch to see why I didn't see it coming.” IMDb