Could the person sitting at the desk opposite you be a potential partner, new friend, psycho- killer? It's a question explored in the 2007 psychological drama Spiral, helmed by Hatchet director Adam Green and co-directed by Avatar's Joel Moore, who also plays the creepy and unnerving lead Mason, a reclusive telesales worker with dark psychological undertones.

The film follows lonely introvert Mason, an insurance company worker by day and talented artist and lover of Jazz by night. His only friend is his boss Berkeley (Zachary Levi – TV's Chuck), who keeps an eye on him and humours his bizarre behaviour. When a vivacious co-worker Amber (Amber Tamblyn – The Ring) shows an interest in him he finds her friendliness soothes his disturbed mind, and he allows her into his world. But the more Amber learns of Mason's past the more she questions her safety as the unsettling mood grows.

Described by Dreadcentral as "the definition of 'slow burn' but in the best possible, most Hitchcockian way," Spiral will be released on UK DVD on 26th April 2010 by indiVISION at the RRP of £14.99. No extras are listed.