Police investigating a brutal murder are stymied when the obvious suspect has an airtight alibi and the next in line lacks the physique needed to batter the hulking victim to death. Truman Bradley opens this episode with a demonstration of leverage and mechanical advantage, which is only obliquely related to the following story's plot as it is revealed early on that the nebbish professor has developed a 'strength serum'that made him powerful enough to kill the extortionist targeting his young colleague. There is not much to the story and the problems of enhanced muscles working through normal joints and tendons is never addressed (the details about the serum is vague, so perhaps it conveniently boosts all components of the musculoskeletal system). The pint-sized murderer is played by John Qualen, veteran of a number of John Ford/John Wayne westerns (frequently playing a 'yumpin' yimminy!'-style Scandinavian sodbuster). The young professor is Skip Homeier (he of 'Star Trek TOS' space hippie infamy).