Killing Gunther (2017) Official Trailer

A group of young, raw and undisciplined assassins hire a docu-crew at gun point, to have undeniable proof that they're the ones who will kill the most infamous hitman of all time, Gunther. But Gunther is on to them before they know it and he makes it his personal mission to make their lives a living hell. It becomes a race against time: kill or be killed, as the hunters quickly become the prey.