It's fun, it's light, [but] it has a hard time when its tries to get heavy.

Although it has its amusing moments, in eneral the plot does not convince.

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.

One of the most extraordinary films you will see this year. Take that as you want.