Before I Hang

A brilliant, morally conflicted physician who pursues a mercy-driven aging cure. The serum awakens murderous impulses when blood from an executed man is involved, forcing him to confront the limits of his ethics. His arc moves from compassionate scientist to dangerous reactor of violence, culminating in a self-sacrificial death to stop further harm.

A fellow scientist who supports continuing the experiments, attracted by the potential of the anti-aging serum. He becomes a casualty of Garth's heightened impulses, illustrating the personal risk scientists take when crossing ethical boundaries. His involvement underscores the fragile line between innovation and danger.

Dr. Garth's daughter, a stabilizing presence who confronts her father's strange behavior. She embodies concern and resilience, challenging him to abandon perilous experiments. Her loyalty is tested as the mystery deepens and the danger escalates.

One of Dr. Garth's aging friends who becomes a test subject for the serum. Initially reluctant, he changes his mind after a visit, highlighting the coercive power of Garth's scientific ambitions. His fate underscores the human cost of unchecked experimentation.

Another aging friend and potential subject who attempts to call for help before meeting a tragic end at Garth's hands. His murder marks a turning point in the story, revealing the depths of Garth's transformation.

The prison warden who facilitates and supports the ongoing experiments within the facility. He represents institutional alignment with dangerous scientific pursuits and the control mechanisms of a penal system.