The House in Nightmare Park

A struggling actor invited to perform a dramatic reading for the Henderson family. His unintentional wit and bumbling charm endear him to some while making him a target for others. He discovers he is Victor Henderson’s secret son and becomes entangled in the hunt for hidden diamonds. Throughout the night, he must navigate a labyrinth of secrets and shifting loyalties to uncover the truth.

The Indian servant who moves quietly through the estate, aware of the family’s dangerous games. He intervenes to help Foster and reveals that certain secrets must remain hidden behind closed doors. His calm, observant nature contrasts with the volatility around him. He is killed by the Henderson mother as he walks through the woods.

Stewart’s sister, who participates in the family’s schemes and helps search for missing items. She maintains a polite, enigmatic front while conspiracies unfold around her. She is seen rummaging through Foster’s luggage and becomes a key player in the web of deception surrounding the will and the diamonds. Her ultimate fate is left unresolved in the summary, implying she survives the night.

The charismatic but calculating host who orchestrates the night’s drama. He seeks to control Victor’s will and the family fortune, viewing Foster as both pawn and threat. He cloaks his manipulation in hospitality while pursuing a hidden agenda, including the belief that Foster possesses a clue to the diamonds. He remains a central figure until the climax, where danger closes in.

The older uncle who arrives with his wife Aggie to demand his share and confront the will. He and Aggie chase evidence of the diamonds, driven by greed and rivalry. He is killed by a stab during the night, a turning point that escalates the danger within the estate. His death underscores how far ambition will push the family dynamics.

The refined but secretive matriarch who is kept behind a locked door for much of the story. She hints at a theatrical lineage in India and briefly attempts to kill Foster with a knife, a danger only Patel’s intervention averts. Her polished exterior masks a readiness to manipulate and endure the chaos around her. She is ultimately taken away with the others by the police at the end.

A bold, money-minded brother who arrives with the expectation of his regular allowance from the fortune. He and Ernest push for funds and attempt to uncover the clues to the diamonds. He is killed in the course of the night, a casualty of the family’s lethal greed. His presence amplifies the tension and competition over Victor’s estate.

Ernest’s wife, drawn into the family’s quest for wealth and the will’s hidden clues. She collaborates with Ernest in pursuing the diamonds, contributing to the escalating danger. She is found dead near the snake house, marking one of the night’s fatal turning points. Her death underscores the deadly consequences of the family’s obsession with money.

Reggie’s daughter, a persuasive presence who nudges Foster toward uncovering the truth. She reveals Foster’s true paternity and his rightful place in the inheritance, guiding the pursuit of the diamonds. She plays a pivotal role in shaping the night’s revelations and remains a key ally to Foster through the unraveling conspiracy.

A minor figure who appears in the estate’s surroundings, adding to the social texture of the gathering. He interacts briefly with the Hendersons, highlighting the event’s everyday life within a grand country house. His presence helps situate the story in a real-world setting between the mansion’s drama and the outside world.