A captain and his sailors investigate the rampaging "Marsh Phantoms" terrorizing a coastal town, but their search is hindered by a local reverend and a horrifying curse.
Peter Cushing
as Reverend Dr. Blyss
Patrick Allen
as Captain Collier
Oliver Reed
as Harry Cobtree
Yvonne Romain
as Imogene Clegg
Michael Ripper
as Jeremiah Mipps
Martin Benson
as Mr. Rash
David Lodge
as Navy Bosun
Derek Francis
as Squire Anthony Cobtree
Milton Reid
as The Mulatto
Rupert Osborne
as Gerry
Jack MacGowran
as Frightened Man
Daphne Anderson
as Mrs. Rash
