Peter Cushing (The Gorgon, Corruption) and Oliver Reed (The Scarlet Blade) star in Peter Graham Scotts Captain Clegg, which sees the legendary Hammer Films studio fuse horror and adventure in a film that was released in the US as Night Creatures.

When Captain Collier (Patrick Allen, Never Take Sweets from a Stranger) investigates reports of smuggling in the tiny coastal village of Dymchurch, the villagers, under the leadership of Parson Blyss (Cushing), refuse to co-operate. Colliers men are plagued by apparitions of marsh phantoms and tales of Captain Clegg, the fearsome pirate leader who was buried there... Or was he?