Here is part of the description:
"For over twenty years, college aged men in the United States have disappeared after a night of drinking, only to be found dead days later in bodies of water. Local authorities have determined many of these water deaths to be accidental. However, evidence exists that indicates many of the these dead young men did not die by accident, but were actually abducted, held for a period of time, murdered, then deposited in bodies of water with the intent to deceive local authorities into thinking the young men accidentally drowned."

Here is the rest:
"These types of deaths, all fitting the same modus operandi, are commonly referred to as the Smiley Face Killings. Often, investigators have found graffiti near the scene of the crime, frequently with the Smiley Face symbol. In the documentary, William Ramsey will discuss many of the cases, including some that have occurred in 2017. He will also reveal possible perpetrators and their motives for these crimes."

Find more info, including the trailer, here:
http://www.true freethinker.com/articles/new-documentary-smiley-face-killers-who-abducting-torturing-and-murdering-college-aged-men-