To get to know his girlfriend's son, a working-class good guy volunteers to pick him up from his prep school, only to learn that he isn't the nicest young man.

In the late 1960s, just for a lark, graduate student Eddie Jessup, known for being unconventional, brilliant and slightly mad, conducts experiments with an isolation chamber, using himself as the subject. His experiences in the chamber cause him to hallucinate, much of the imagery being religious-based although he's not religious. Seven years later, he is a respected full professor in the Harvard Medical School. Believing he has lost his edge and fallen into an unwanted state of respectability, Eddie decides to resume his work with sensory deprivation, this time using hallucinogens, specifically untested ones used in mystical Mexican rituals, to enhance the isolation-take experience. After initial tests, he claims he entered an alternate physical and mental state. Although unbelieving of Eddie's claims, his colleagues Arthur Rosenberg and Mason Parrish, as well as Eddie's wife Emily, herself a respected academic, are concerned for Eddie's well being. However, if Eddie's claims are indeed true, he could do irreparable harm to himself and others around him, especially if his altered states are uncontrollable.

When car dealer Charlie Babbitt learns that his estranged father has died, he returns home to Cincinnati, where he discovers that he has a savant older brother named Raymond and that his father's $3 million fortune is being left to the mental institution in which Raymond lives. Motivated by his father's money, Charlie checks Raymond out of the facility in order to return with him to Los Angeles. The brothers' cross-country trip ends up changing both their lives.

A psycho-physiologist experiments with drugs and a sensory-deprivation tank and has visions he believes are genetic memories.

The cop test pilot for an experimental police helicopter learns the sinister implications of the new vehicle.

Norman Bates falls in love with a fallen nun who stays at the Bates Motel alongside a drifter and a curious reporter. Meanwhile, "Mother" is still watching.