In August 1977, psychic investigator Maurice Grosse, in answer to a call from newspaper journalist Doug Bence, visits a house in Enfield where single mother Peggy Hodgson, her daughters Janet (11), Margaret (13) and Billy (7) have reported bizarre events which they attribute to a poltergeist. Moving into the house, Maurice is convinced after a tea pot crashes from a table. He is joined by Guy Playfair, another psychic researcher and author, though Guy is cynical and believes the girls are fabricating evidence as a hoax. Maurice feels a kinship with Janet - also the name of his young daughter who died a year previously - and is reassuring when she believes she brought the ghost home after playing in a graveyard. However when Guy tells Maurice he believes he is too involved to be objective he moves out, leaving Guy to investigate alone. Soon events are taking place that cause Guy to believe that the poltergeist is genuine. Plus Maurice Grosse and Guy doesn't cooperate too well with each other.
—don @ minifie-1