Recently relocated from New York to London with his attractive wife Sarah (Sara Stewart) and their baby daughter, ambitious analyst Lincoln Mathers (Doug Cockle) appears to have it all. Everything seems to be going well for the Mathers family until Sarah uncovers a tomb in the cellar of their new house and convinces Lincoln to keep the discovery a secret. Occupied with his work, Lincoln fails to acknowledge the changes going on around him and his family - food is beginning to rot at a rapid rate, flowers wilt and die more quickly than usual and Sarah has begun to develop increasingly overt sexual cravings. She’s also started to create bizarre paintings and sculptures that seemingly have no meaning.

Sarah’s strange behaviour and the mysterious happenings in the house soon attract the attention of a kindly bohemian woman, Fiona (Trisha Mortimer), along with a pair of local voodoo practioners, Ray (David Webber) and Ruth (Jacqueline Boatswain). The latter are convinced that the spirit of a dead African warrior now inhabits Sarah’s body but Lincoln is understandably skeptical and condemns their suggestion that an exorcism needs to be performed. But news of an unexpected death and Sarah’s worsening state of mind force Lincoln to question everything he believes in and to make a remarkable leap of faith as he faces up to the reality of the horror before him.