Deadly Dentist
In Saint Louis, a serial killer strikes and vanishes leaving little evidence in his wake. Blending into the community, he confounds authorities for more than three decades. To catch him, police must find his weakness and reveal the true face of a murderer.
Starring
Watch "Deadly Dentist" on Tubi TV released in 2001. It's a crime and documentary movie, and has a rating of 7.4 out of 10 from Imdb which is usually fine for this kind of movie, and is currently available to watch for free.