When a new baby monkey is found missing, Hilde Fursten is blamed by Dr. Walther Braun, a visiting dentist. That evening, Dr. Braun arrives at the zoo to perform oral surgery on a lion and is found dead in the lion's cage. 

Advertising executive Herman Albright is in the wrong place at the wrong time wearing the wrong clothes. These mistakes cost poor Herman his life in a case of mistaken identity. Perry is called on to defend the fashion model charged with the crime.