Lost in the Shadows

In the 1990s, during a stormy night, three teenagers disappeared. While one was found dead, the other two went missing. Three years later one of the missing teens reappears. He suffers from amnesia and has no memory of what happened to him. He is being returned to his family but something is suspicious about them. An old police man secretly investigates the case and discovers many hidden secrets related to murder cases and human trafficking. What is the family hiding? And what happened to the other missing teenager?