Sarah Smith is an 18-year-old blonde college student who lives with her parents and sibling. She is outgoing, social, and currently in a relationship with Jason Green. Jason Green is a 19-year-old bricklayer who works out regularly and lives independently in his own flat. He keeps to himself but is also mature and hard-working. The stalker is a tall, slender male of unknown age who dresses in all black and has a yellow key tattoo. He displays unpredictable and creepy behavior and has no known family or relations.