A racing driver (Ronald Lewis) is injured in a car accident on his honeymoon which leaves him mentally scarred, and with violent impulses towards his new bride (Diane Cilento). Directed by Val Guest (The Quatermass Xperiment, The Day The Earth Caught Fire) and photographed by the great Gilbert Taylor (Dr. Strangelove, The Omen, Star Wars), The Full Treatment again draws inspiration from Clouzot's Les Diaboliques, and is one of Hammer's most effective and distinctive psychological thrillers of the 1960s.