The Zetas

In the series finale, the person behind it all explains how John Dwight was assaulted. 

The Narrator gathers everyone in Anne and Leah's room in an attempt to force a confession from Erika. 

The house grows more tense after the discovery of a second body outside Anne and Leah's window and the Narrator picks up more possible evidence from his potential suspects. 

As the Narrator, Anne, and Leah begin compiling a list of potential suspects, the mystery of what happened to John Dwight becomes more confusing. 

The Narrator begins interviewing members of the Zeta Zeta Mu sorority. However, his conversation with Anne is interrupted when she finds a dead body outside her bedroom window.