The Two Faces of Dr. Jekyll

In 1874 London, Kitty, Jekyll's wife, is secretly involved with his friend Paul Allen. Jekyll's warnings from Dr. Littauer go unheeded as he abandons caution to pursue deeper knowledge. He conceives a chemical potion intended to explore the depths of the human mind.

Jekyll tests the potion on himself and undergoes a transformation into Edward Hyde. Hyde is young, handsome, and irresistibly dangerous, embodying Jekyll's repressed urges. The experiment marks the birth of the murderous alter ego.

Hyde fixes his gaze on Kitty after she rejects him. He rapes her and leaves her unconscious, demonstrating his complete domination. Kitty awakens with bruising and scratches, a brutal warning of Hyde's presence.

Kitty finds a note addressed to her and rushes to locate Paul. In a room Hyde had locked Paul in, she discovers her lover bitten by a venomous snake and dead. The discovery confirms Hyde's lethal reach and leaves Kitty devastated.

Kitty goes to the patio and, ignoring the party's music, climbs to the balcony. She leaps and falls through the glass roof as guests scream in horror. The fall ends her life amid the chaos of the party.

Hyde returns to the house and kills Maria, an exotic dancer he had been having an affair with. The murder deepens Hyde's brutal spree and tightens Hyde's control over Jekyll's life.

The next day, Jekyll learns of Hyde's deeds and faces his double through a mirror. Hyde shoots a man in the laboratory and arranges the body at a desk to frame Jekyll for the killings. The stage is set for a deadly misdirection.

Hyde sets fire to the laboratory as the police arrive. He escapes by exploiting a dramatic ruse, claiming that Jekyll tried to kill him and that Hyde shot himself out of madness. The building burns as the truth remains tangled.

Some time later, Hyde, Littauer and the police attend the coroner's court. It is found that Jekyll was responsible for the deaths due to dangerous drug experimentation and that he took his own life. The legal reckoning finally arrives for the scientist.

Hyde tries to leave the building, but Jekyll fights him from the inside and regains control. The struggle within the body mirrors the external chaos around him, culminating in Jekyll's presumed dominance.

Dr. Littauer recognizes his old friend as Jekyll sits on a bench before astonished onlookers. With tears in his eyes, Jekyll says that only he could stop Hyde and that he has destroyed him. The police move forward to arrest him for the alleged crimes.