Since the turn of the 20th century, children have grown up with the cautionary parable of 'Captain Hooks' - charismatic, likable strangers with sinister intent of whisking them away. Regardless, there's a ferocious urgency in Fritz Lang's M, and its operatic hunt for the unassuming killer with the human face (you can practically feel Alfred Hitchcock leaning in for a fist bump) perhaps, sniffing out a shifting sociopolitical climate, he could tell "indolent" adults needed a 'Captain Hook' of their own.