Gaslight

At 62 minutes (without commercials) this is the 4th longest episode of the series. Season fives premiere 'Checking In' and season 4's premiere 'Monsters Among Us' both clock in at 64 minutes, while season 5's 'Chutes and Ladders' remains the longest, with a running time of 74 minutes.

When Harry locks Doris inside the bathroom, he pushes the dresser in front of the doors, presumably to keep the doors from being pushed open from the inside, however, it's clear that the doors pull open from the inside, thus rendering the dresser useless for this purpose.

References Luz que agoniza (1944)