The host of a popular paranormal podcast becomes haunted by terrifying recordings mysteriously sent her way.

“”Undertone” is the scariest movie you will ever hear, viscerally overloading your eardrums with haunts that are sure to keep you up at night and evoke a physical reaction when you hear it again.” (Nerdbot)

“Ian Tuason’s ‘undertone’ is fine-tuned audio horror excellence. “ (Dread Central)

“With undertone, Tuason has created one of the few horror films that’s even more horrifying to hear than it is to see. ” (Collider)

“There’s no denying the film’s visceral impact right up until the final frame. I can’t remember the last time a movie made every hair on my body stand up, but The Undertone got me good. ” (Bloody Disgusting)

“Of all the films that have depended on audio-instigated thrills and chills, The Undertone may be the best to have ever done it … Flawless in execution and detail … The Undertone is one of the best horror thrillers you will ever listen to.” (Screen Anarchy)

Wednesday, April 22
Doors 8:30 pm | Movie 9:00 pm *Times are approximate. Start time subject to change.
Single Film Tickets HERE

Come a little earlier and make it a Double Bill with THE SWEET HEREAFTER at 6:30 pm for just another $2 HERE

UNDERTONE (Ian Tuason, 2026 / 85 mins / 18A) The host of a popular paranormal podcast becomes haunted by terrifying recordings mysteriously sent her way.

*Minors OK. Must be 19+ w/ID for bar service.
*Rio Theatre Groupons and passes OK for any single film only. Please redeem at the door.
*We recommend purchasing your tickets in advance at www.riotheatretickets.ca. If a screening or live event is not sold out, the remaining tickets will be available for in-person purchase at the Rio Theatre’s box office prior to showtime (subject to availability).
*Our box office is typically open 30 minutes before showtime. All seating is General Admission; please arrive 20-30 minutes prior to showtime to ensure great seats, and time for treats at concession.

*All Rio Theatre tickets are final sale. No refunds, exchanges or transfers.