Christopher Smith pops up on this list once again, and not for the last time either. Creep is his feature debut and whilst it's not a flawless film nor a classic by any stretch, it's an incredibly effective B-movie effort that possesses the singular goal to unsettle you with cheap scares and old-school "man-in-a-costume" terror, which it does in abundance. The film follows a woman who's accidentally trapped in the London Underground and, to avoid a potential attacker, heads into the unknown labyrinth of tunnels beneath the city's streets only to find a fate far worse. Evoking (and paying enormous homage to) the immensely superior cult classic, Death Line, Creep is a genuinely solid genre entry from a first time director.