Arnold

The story takes place in the Dwellyn family mansion, a sprawling Gothic estate filled with shadow-filled rooms and hidden passages. The mansion serves as both the primary location and a character in itself, with its opulent surfaces masking deadly traps that Arnold set before his death.

The film does not specify an exact time period, though the mansion's Gothic atmosphere and classic car usage suggest a mid-20th century setting. The timeless quality of the estate and its old-world wealthy family context give it a classic mystery feel without anchoring to a specific era.

The film centers on three major themes: Mystery (the corpse-bound marriage and pre-planned death traps create a puzzle for the heirs to solve), Greed (the competition for Arnold's fortune drives betrayals and shifting loyalties among relatives), and Estate Gothic (the mansion itself becomes a menacing character where luxury hides danger).

Karen is Arnold's widow who married him at his funeral specifically to claim his inheritance. Bound by a strange clause in the will that requires her to stay by the corpse, she must remain in the mansion. She is suspected of having an affair with Robert, Arnold's brother, and faces constant suspicion from the other greedy relatives.

Robert is Arnold's wastrel younger brother who resents the family's control over the estate. He is involved in an affair with Karen and competes with other heirs for a share of the fortune. His greed and volatile rivalry add tension to the deadly game surrounding the inheritance.

Hester is Arnold's sister, the only family member who seems genuinely pleased by the bizarre situation. She watches the scheming relatives with wry, knowing wit, using the chaos to her advantage within the family dynamic.

Arnold's will contains a bizarre stipulation: his body cannot be buried, and his widow Karen must remain by his corpse to inherit the estate. This forces her to stay in the mansion while he designed death traps to eliminate the greedy relatives who try to break or reinterpret the will.

The Dwellyn mansion functions as more than a backdrop, it acts as a character woven into the story's tension. Its opulent rooms and hidden passages become the stage for family feuds and deadly traps. The Gothic atmosphere blends humor with menace as Arnold's pre-planned death traps unfold within the walls.

Constable Hooke is the local constable assigned to investigate the mysterious deaths at the mansion. His earnest but often ineffective attempts add comedic frustration to the mystery, contrasting with the dark events unfolding among the greedy heirs.

Arnold blends multiple genres with a darkly comedic tone. The premise of marrying a corpse is inherently macabre, but the film uses crude humor and satire while maintaining steady suspense through the mystery. The cartoony, pre-planned nature of the death traps prevents it from being purely bleak.