The best Robert Powell’s horror movies

A young psychiatrist applies for a job at a mental asylum, and must pass a test by interviewing four patients. He must figure out which of the patients, is in fact, the doctor that he would be replacing if hired.

In this modern-day version of the Rasputin story, David Hemmings plays an up-and-coming senator, Nick Rast, whose young son is terminally ill with leukaemia. A mysterious faith healer, Gregory Wolfe, appears and seems to cure the boy. Rast's wife Sandy falls in love with Wolfe, but the powerful interests behind Rast's career, represented by geriatric monster Doc Wheelan are less happy with events.

When a 747 crashes shortly after take-off, the sole survivor is the pilot. Virtually unhurt, he and the investigators look for the answers to the disaster. Meanwhile mysterious deaths occur in the community and only a psychic, in touch with the supernatural, can help the pilot unravel the mystery surrounding the doomed plane.

Hugo is a brilliant turn-of-the-century scientist, loved and respected by his family and friends, admired by his colleagues. But he is a man quickly becoming obsessed with a curious and frightening question... what is the mysterious apparition found in the photographs of his dying subjects?

The US military is running a test for a special type of radio transmitter, to be used to communicate with submarines, in a deep system of underground caves in Central America. When the signal from one of the transmitters suddenly disappears, a team of soldiers led by Major Elbert Stevens (Bottoms) and cave specialists led by Rupert 'Wolf' Wolfsen (Powell) including scientist Leslie Peterson (Blount) are sent in to find out what happened. Exploring deep underground, they stumble upon a tribe of albino cave-dwellers who have apparently been isolated from the rest of the world for thousands of years. The cave-dwellers are hurt by radio frequencies and are able to see in infra-red frequencies, tracking the explorers by their body heat.