Build a movie plot around this: What was Tim celebrating? His 21st birthday.
A:
Tim (Patrick Kennedy) invites eight friends of his to his Scottish mansion for a weekend celebration for his 21st birthday. Among the guests is his former college roommate Pete (David Nicolle), Pete's former girlfriend Laura (Amelia Warner), her best friend Emma (Rosie Fellner), Emma's former roommate Lucy (Vivienne Harvey), Lucy's New York socialite friend Jo (Paris Hilton), Jo's Manchester boyfriend Tom (Lex Shrapnel), and fellow college friends Damien (James Schlesinger) and Andy (Ben Peyton).During the night of a sudden snowstorm which strands everyone in for the night, Tom finds an old book behind a bookcase about a local Scottish lord, named Murray, who was put to death in 1746 during the last Scottish uprising. Upon reading the book, the spirit of Murray emerges from the book and possesses Tom, causing his eyes to turn black, and goes on a killing rampage starting with Jo whom he kills in a bathroom. Next, Tom kills Emma in her bedroom as she is preparing for bed, until he is stopped by Tim who stabbs him to death. But then, Tim is possessed by Murray, continuing the killing spree.When Lucy is stabbed and severly wounded by the possessed Tim, the five survivors hold themselves up in the parlor where they try to make sense to what is going on. While Pete tries to rationalize an explanation, Laura discovers the book that contained the evil spirit of Murray and begins to put two and two together about the possession: whenever the possessed person is killed, the spirit of Murray will pass onto whoever killed his host. Pete and Damian leave the parlor and confront the possessed Tim in the mansion cellar. In the struggle, Damian accidentally kills Tim, and in turn, gets possessed as well.Leaving Andy behind to look after the wounded Lucy in the parlor, Laura and Pete attempt to capture the possessed Damian, only to have him slip past them when they attempt to trap him in one of the mansion's many bathrooms. The possessed Damian breaks into the parlor and attacks Andy, only to be accidentally killed by the...