Ben Kendall (Lloyd Nolan) is a middle-aged, mild-mannered accountant whose quiet life begins to unravel when he suspects his much younger, glamorous wife Lila (Cathy Lewis) is having an affair.

The episode begins innocently enough: Ben narrates his happy, if slightly routine, life with Lila. But as he describes small changes — her new clothes, late nights, unexplained absences — his tone darkens. He becomes convinced that Lila is seeing someone else behind his back.

Fueled by mounting paranoia and a deep-seated inferiority complex, Ben begins spying on her — reading her mail, tapping her phone, even following her. He keeps telling himself he’s just looking for the truth… but his actions grow more obsessive and dangerous.