High school student Debbie (Shelley Hennig) consults a spirit board on her own and takes a tumble over her balcony with a string of fairy lights wrapped around her neck.
Classmates struggle to make sense of her apparent suicide. “I never got a chance to say goodbye,” sobs Debbie’s best friend Laine (Olivia Cooke) to her boyfriend Trevor (Daren Kagasoff).
During a nostalgic final tour of Debbie’s bedroom, Laine discovers an antique Ouija board and decides to rally the troops to make contact with their late friend and say their tearful goodbyes.
Laine convenes at Debbie’s house with her truculent younger sister Sarah (Ana Coto), Debbie’s boyfriend Pete (Douglas Smith), gal pal Isabelle (Bianca A Santos) and Trevor to open a connection to the spirit world.
Unwittingly, the friends make contact with a dark force that inhabits the house and torments the teenagers with the same greeting: HI FRIEND.
The body count rises and Laine follows a trail of clues leading to a patient in Hoover State Care Psychiatric Hospital with intimate knowledge of the house’s previous occupants.