Forbidden

A trained chemist reduced to peddling potions at a fairground stall, Jim is intelligent and resourceful but emotionally trapped in a loveless marriage. He falls for Jane, keeping his wife Diana's existence a secret, which strains his loyalties. His drastic plan to kill Diana exposes a dangerous willingness to take extreme steps to escape his situation.

Jane is a warm-hearted, working-class candyfloss and ice cream seller who forms a genuine connection with Jim. She responds with integrity when faced with Diana's attempts to separate them, and she is determined not to be bought off. Her romance with Jim challenges social norms and reveals her strength and compassion.

Diana is Jim's domineering wife, ambitious and unscrupulous in her pursuit of showbusiness. She manipulates others and engages in affairs to further her career, showing a ruthless pragmatism. Her dramatic arc ends with a death that exposes the fragility of reputations and the dangers of controlling others.

Dan is Jim's former army comrade who works with him at the fairground stall, sharing the burden of producing and selling potions. He is practical and loyal, helping Jim navigate their precarious livelihood. His role provides support for Jim's schemes and personal conflicts.

Jerry is an older, worldly lover of Diana who Diana believes can aid her theatrical ambitions. He represents a cynical, manipulative influence in Diana's schemes and adds tension to Jim's moral dilemma.

Inspector Baxter is the diligent police officer investigating the disappearance and potential murder. He is perceptive and persistent, driving the investigation and pursuing the truth as Jim's alibi frays.