It’s an especially fun movie from a director and cast who are clearly having a good time allowing themselves to let loose.

If the ambition is to provide two hours of instantly forgettable, popcorn-munching escapism, it succeeds.

It's funny, it's tense, it features two great performances from two actors and the director expertly creates a web of odd tension where you actually don't know what is happening for the majority of the run time.

Excellent and certainly provocative... If nothing else, the film is a real conversation starter.