A patient's therapy session with his stepmother-therapist takes an erotic turn, leading to a steamy threesome. The Australian husband joins in, escalating the taboo encounter.
Injured patient, David, seeks physiotherapy at his stepmother's place. Dr. Anderson, a friend of the family, arrives to help. The doctor starts with a sensual massage, igniting David's arousal. His stepmother joins, revealing her desire for her stepson. The doctor encourages their exploration, leading to a heated threesome.