THE GHASTLY ONES

Three sisters, Veronica, Victoria, and Elizabeth, receive letters from their late father's lawyer informing them that their father wishes they spend three nights in his house on an isolated island before his will can be read. They and their husbands, William, Richard, and Donald, are met there by the two maids, Martha and Ruth, and a hunchback named Colin. While helping with the luggage, Colin becomes angry and catches and eats a live rabbit. The rabbit remains are later found in Veronica and William's bed, along with a note reading, "Blessed are the meek for they shall inherit."

Victoria and Robert find that someone has painted a large 'X' in blood on their bedroom door. Robert and Donald go downstairs to investigate, but Donald collapses after being drugged. Robert investigates the cellar and sees someone he recognizes. Shortly afterward, Victoria finds his body hanging by the ankles on the stairs. The next morning, while discussing what happened, Ruth asks Martha if she had tied up Colin that night.

Colin attempts to tell Victoria something, but is interrupted by Martha and sent to chop firewood in the cellar with Donald (who is given a leather strap to use on Colin). Donald finds a plank of wood with a bloody 'X' on it, but is attacked from behind, gagged, and bound to a workbench before being disemboweled and cut in two by a hooded figure.

At dinner, the guests ask about Donald and Elizabeth's whereabouts. Eventually, Elizabeth's severed head is found in the serving dish when dinner is served.

William enters the cellar to investigate and finds a box and a photograph. However, Colin steals the photo from him, and William is then attacked and killed with a pitchfork by the hooded figure. Later, Martha finds Colin with the photograph and realizes what it means, but she is killed with a hatchet. Colin tries to escape from the killer but is set alight.

It is revealed that Ruth is, in fact, Hattie, the fourth and eldest sister, and she had planned to kill the others and blame Colin so that she could claim the inheritance. Colin is still alive, however, and pushes her down the stairs, causing her hatchet to bury itself in her head. The two remaining sisters, Veronica and Victoria, stare in disbelief.

It is revealed that Ruth is actually Hattie, the eldest sister, who planned to kill the others for the inheritance, but she is killed by Colin. The two surviving sisters are left in shock.

The film’s final revelation ties the inheritance motive to familial betrayal, as the true killer is unmasked from within the sisters’ own ranks. Hattie's demise at the hands of Colin brings the bloody saga full circle, leaving the survivors traumatized and the inheritance tainted by violence. The conclusion cements the film’s themes of greed, mistrust, and the corrosive power of family secrets.