This drug-related mystery has Dillman finding himself in someone else's apartment with a dead woman submerged in the bathtub. Discovering dried blood on his hand, he wonders if he was responsible for her death during an accidental LSD-induced blackout the night before. He hires Guardino
to find out what really happened. Under Guardino's supervision he takes a dose of the drug, attempting to recall the previous night's events. They discover Dillman's coworker Hingle had slipped LSD into his coffee as part of an intricate blackmail scheme. In order to get Dillman's girl friend and
his job in a government think tank, Hingle set him up. Amid many special camera techniq...