The Specter of Old Main (2013)

Who can you trust when your only ally is in your head? Damon's Sikes' sanity hangs in the balance after the death and disappearance of his two closest friends. While battling post traumatic stress, strange dreams, and possible hallucinations, Damon finds an ally in a man with no face and no name. Together they seek out the answers to questions the police dubbed a cold case and uncover clues about a secret fraternity who may be connected.