Leaving their son, Chris (Daniel Holzman), with a family friend (William Wellman Jr.), Frank (John P. Ryan) and Lenore Davis (Sharon Farrell) head to the hospital for the birth of their second child -- which turns out to be a mutant who kills many doctors and nurses as it escapes. Convinced his monstrous son must be destroyed, Frank ignores Lenore and Chris' pleas and tries to... Wikipedia