In a dilapidated mansion hosted by the enigmatic Seth, a group of hippies embark on a cross-country trip to California, seeking enlightenment and freedom from their controlling lives. However, they are unaware that they are being watched and followed by the Phantom Stranger, who intervenes to save one of them, Marcie, from a dark fate. As Marcie delves deeper into the mysteries of the mansion, she uncovers a sinister cult leader who is hiding a dark secret: he's a soul-eating vampire with the power of eternal life at his disposal. With the Phantom Stranger by her side, Marcie must outsmart the villain and shatter the curse that threatens to destroy them all.