A man is killed by drowning in a bathtub in a small upstate town. His killers take his body to the city where they dump it in the sea lion pool at the zoo. When the body is found it looks like suicide until laboratory tests prove what Boston Blackie suspected.
 Duration: 26:47
 Starring: Dick Kollmar, Jan Miner, Maurice Tarplin 
Broadcast Date: 14th May 1947