You know that moment when you see someone being threatened late at night and you wonder if you should do something?
According to Fred Cavayé's blistering Parisian thriller, you should leave well alone. The events that befall nursing aide Gilles Lellouche could do for altruism what Jaws did for swimming. Lellouche steps in when patient Roschdy Zem is attacked; then, after a bit of ego-pumped boasting, his pregnant wife (Elena Anaya) is kidnapped. The ensuing Sturm und Drang abandons plausibility for pace, as Lellouche sprints through a sinew-tight 80 minutes of Gallic-grey amorality. Subtle and clever it isn't, but it is bloody exciting.