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.

The joyful confection is coated in a sparkly gloss, bright enough to gleam from the darkest, most cynical corners.

The film never slows down or bores, plunging from one harrowing sequence to the next.

True to its essence, the characters remain on the same line and manage to entertain the viewer, each highlighting their own distinctive qualities or touches.