Matthias Schoenaerts (also starring in A Bigger Splash — see below) kept my attention as a French Special Forces soldier hired to protect a very wealthy businessman and his family. The problem is that the soldier suffers from PTSD and is unsure whether the things he sees suggest danger or are figments of his imagination; in addition, he develops an obsession with the businessman’s wife (Diane Kruger). Lots of holes in the plot, but just go along for the ride. (Subtitled.)