Paul Groves (Peter Fonda), a television-commercial director, is in the midst of a personality crisis. His wife Sally (Susan Strasberg) has left him for another man and he seeks help from his friend John (Bruce Dern), a self-styled guru and an advocate of LSD. Paul asks John to guide him through his first "trip," and John takes Paul to a "freak-out: at his friend Max's (Dennis Hopper) pad. Splitting the scene, they score some acid from Max and return to John's split-level pad with an indoor/outdoor pool. Paul experiences visions of sex, death, strobe lights, flowers, dancing girls, witches, hooded riders, a torture chamber, and a dwarf. Most prominent among his hallucinations, however, are two women. He can't let go of his memories--good and bad--of Sally, but he has only just met Glenn (Salli Sachse), an acquaintance of Max's with whom he feels an immediate connection, as she admires those who dare to try LSD and wishes to see him again soon. He panics, but John tells him to "go with it, man." Would you trust John?—alfiehitchie