Stalked: Someone's Watching (2011)

S4E12 S&M: Sex & Malice

Ann Moulds finds herself tormented by a series of cruel letters from an anonymous stalker, prompting her to seek assistance from the police. However, in Scotland, the absence of stalking laws leaves her vulnerable and without protection. Everything changes when she uncovers the shocking truth about who is behind the harassment, turning her life completely on its head.