Mr. Joly, doctor Cordelier's lawyer, is amazed to discover that his client and friend leaves his possessions to a stranger, Opale, a sadistic criminal. He needs this man to prove that people's behavior can be adjusted at will...Mr. Joly, doctor Cordelier's lawyer, is amazed to discover that his client and friend leaves his possessions to a stranger, Opale, a sadistic criminal. He needs this man to prove that people's behavior can be adjusted at will...