Linda Kasabian falls prey to the hypnotic charms of Charles Manson and his self-proclaimed "family" during the drug-fueled summer of 1969.

Linda arrives at the seemingly idyllic Spahn Ranch hippie commune where she is embraced with open arms. Seduced by the group's free-love lifestyle, Linda revels in the sisterhood and acceptance. Taken with Manson, he soon draws her into criminal activities.