Crime Scene Investigation, which first premiered in 2000, has kept viewers on the edge of their seats over the years with its ...

Is there a national murder conspiracy hiding in plain sight, or is the whole scenario a series of coincidences? A myth? These are the questions surrounding the Smiley Face Killings.

Take a look at the trailer ahead of its release on March 20.

Dennis Quaid stars as the notorious Happy Face Killer, aka Keith Hunter Jesperson ... He got his nickname because he often drew smiley faces on his letters to the media and authorities.

Unfortunately Smiley Face Killers: The Hunt for Justice isn't available to watch right now. Add it to your list and we'll let you know when it becomes available.