Son of a Villian's Revenge

Clint Preston is young successful businessman who happens to be the son the villain Dark Duke.  The young man has not interest in following in dad's footsteps.  He has even talked the old villain to hang up his cape.  On his last job Dark Duke if accidently killed by his long time foe Blonde Specter.  Clint vows to make the beautiful heroine pay.  The thirty-eight year old heroine has no idea she is now the target of a young man who may have the brains to being her down.