If there was ever a documentarian to skillfully capture the complex nuances of his subject, especially one who’s lived a hard and fast life shrouded in mystery (and drugs), that would be Errol Morris. His latest film, My Psychedelic Love Story, is a mesmerizing oral history of sorts about Harvard psychologist and LSD’s most notorious proponent, Timothy Leary. If you were a progressive hippie in the 60s, you idolized this man. If you were Richard Nixon, you’d do whatever it takes to restrain him and his drug-encouraging tendencies.

Leary, often referred to as the “High Priest of LSD,” inspired millions of young people to take the drug to expand their minds and was seen as the counterculture’s hero. After successfully evading authorities by sneaky international travels with his then-girlfriend, Joanna Harcourt-Smith, Leary was eventually captured by the FBI in the early 70s on drug conviction charges. However, in a strange turn of events, he agreed to be a government informant to shorten his prison sentence, a decision that still puzzles many to this day.

Leary’s former partner in crime, Harcourt-Smith, is the sole narrator in My Psychedelic Love Story, giving us a colorful depiction of her time living, loving, and tripping with Timothy Leary. She talks directly to Morris throughout the film, answering his pointed questions about the enigma that was Mr. Leary.

Harcourt-Smith is an interesting person on her own; a Parisian socialite, she was a promiscuous psychedelic activist who can carry a story, however, at times it’s hard to keep the narrative straight. Perhaps those already familiar with Leary’s story will have an easier time remembering all the names, places, and events, as I, admittedly, started to zone out a bit. Disclaimer: I was watching this completely sober, probably against Leary’s wishes.

It’s high time a documentary was made about LSD’s most notorious proponent, and Errol Morris delivers in both style and substance. Following his previous successes Gates of Heaven and The Thin Blue Line, Morris adds another substantial cultural relic to his filmography with My Psychedelic Love Story.

‘My Psychedelic Love Story’ is available to stream this Sunday on Showtime.