A psychotic man schemes to drive his sister mad so that he can claim her inheritance, but a deadly game of cat-and-mouse begins when an imposter intervenes.
Paranoiac is a 1963 British psychological thriller film directed by Freddie Francis, and starring Janette Scott, Oliver Reed, Sheila Burrell, and Alexander Davion. The screenplay, written by Jimmy Sangster, was based loosely on the 1949 crime novel Brat Farrar by Josephine Tey.
