Beyond Re-Animator

After 13 years in prison, the mad scientist from Re-Animator (1985) gets a new chance to experiment with the arrival of a young prison doctor, who secretly hopes to learn to reanimate dead people. Good intentions turn to horror.
Once again tampering with mother nature to disastrous results, Dr. Herbert West continues his research while serving time in a maximum security prison for his previous exploits. West's limited prison-cell experiments are suddenly interrupted by the arrival of a new prison doctor and the brother of the girl who suffered from West's experiments 13 years earlier.