After a family tragedy, three generations of the Deetz family return home to Winter River. Still haunted by Betelgeuse, Lydia's life is turned upside down when her teenage daughter, Astrid, accidentally opens the portal to the Afterlife.
After a young cheerleader, Niamh, works her back from an injury, she finds out she has been replaced by her team.
When one of a group of friends downloads the mysterious Red Rose app, plans change. What starts innocently as a game of admiration rapidly descends into something much darker.