Tales of Tomorrow: The Evil Within (1953)

 

A bored housewife waits at home everyday for her scientist husband to return and spend time with her. Her husband comes home early one day because the refrigerator in the lab breaks. He brings home his serum that needs to be refrigerated. The serum brings out the worst in all the animals in the lab and he speculates that the same is possible with humans. After nearly breaking his specimens, he puts the test tubes in the refrigerator and returns to the lab. What could possibly go wrong? 

This episode features a brief appearance by James Dean.