When ambitious analyst Lincoln Mathers (played by Doug Cockle) relocates his family from New York to London, his wife Sarah (Sara Stewart) discovers a new disturbing power and becomes hostage to an ancient spirit. As Mathers notices that the family is tearing apart and that his wife's behavior becomes more violent and erratic, he accepts that to save the woman he married he must take a leap of faith. London Voodoo is one of the few films about voodoo to show the belief system in a positive light. Here, it's "work" that's evil. The film shows multicultural voodoo followers in a contemporary urban setting (London). As research for the script, the filmmakers travelled to Cuba, Miami and New Orleans to experience voodoo first hand.

A recently-married woman who has been labeled as mentally unstable, begins to suspect that someone close to her is the culprit in a sudden string of murders.

In 1957, Dorothy and Edmund Yates were committed to an institution for the criminally insane, she for acts of murder and cannibalism and he for covering up her crimes. Fifteen years later, they are pronounced fit for society and released. However, in Dorothy's case the doctors may have jumped the gun a bit. Edmund and eldest daughter, Jackie, try to discover just how far Mother's bloodlust has taken her. Meanwhile, youngest daughter Debbie begins to explore the crazy roots of her family tree as fully as possible.

The deputy manager of a London bank has worked out a way to rob the branch of £200,000. When he becomes involved with the attractive Lady Dorset he decides to go ahead with his plan. He needs her help and that of her philandering spendthrift husband. It all comes down to a matter of trust.