A woman answers a help wanted ad to be a housekeeper in a mysterious high-rise in New York City, not realizing she is entering a community that has seen a number of disappearances over the years and may be under the grip of a Satanic cult.

Having thwarted Bowser's previous plot to marry Princess Peach, Mario and Luigi now face a fresh threat in Bowser Jr., who is determined to liberate his father from captivity and restore the family legacy. Alongside companions new and old, the brothers travel across the stars to stop the young heir's crusade.

Tethered by a frightening conclusion, Maya and the Strangers are locked on an unavoidable, unforgiving collision course — a showdown that proves they’re far from strangers now.

Moments after surviving an all-out attack from the Le Domas family, Grace discovers she’s reached the next level of the nightmarish game — and this time with her estranged sister Faith at her side. Grace has one chance to survive, keep her sister alive, and claim the High Seat of the Council that controls the world. Four rival families are hunting her for the throne, and whoever wins rules it all.