In Egypt, 1888 Flinders Petrie finally broke in to the burial chamber of King Amenemhat III one of the wealthiest monarchs from the middle kingdom. After a year of digging, he finally peered into the resting place of the old king, only to find that the space had been stripped of everything. Four experts have been brought together to reopen the case to solve the mystery.

True-crime author, Carly, and her husband Kevin take a vacation at a historical mansion on Crawford Island. Kevin thinks it will be a chance for them to reconnect, but Carly plans to research the puzzling unsolved murder of Diana Crawford.

Kylie Winters, a bullied and self-loathing teen, reluctantly agrees to babysit at an isolated country mansion on Halloween night. When a small boy in a pig mask appears at the door trick-or-treating, Kylie's night transforms into a horrifying and violent cat-and-mouse game. She must go beyond what she ever thought possible if she and the children are to survive the night.

Pushed to the breaking point by Simon, her psychologically abusive boyfriend, Alice becomes an unwitting participant in an intervention staged by her two closest friends while on vacation. As she rediscovers the essence of herself and gains some much-needed perspective, she slowly starts to fray the cords of codependency that bind her. However, Simon's vengeance is as inevitable as it is shattering, and once unleashed, it tests her strength, her courage, and the bonds of deep-rooted friendships.