Reeker

(Dave Payne, 2005)

I'm going to tentatively recommend this. There are some negative aspects: it's not an entirely original plot, and the delivery of the "twist" at the end is annoyingly patronising, with a long montage of explanatory flashbacks obviously designed to guarantee that even the most thick-headed members of the audience can retrospectively comprehend what has happened. But on the plus side, the direction, dialogue, pacing and acting are all well above-par for a horror film of this type, and there are plenty of nice funny touches throughout. Also the SFX are basic but very effective.