The ghost of Dashiell Hammett haunts the corridors of a nondescript suburban high school in this odd but engagingly off-kilter thriller. Mercilessly intelligent loner Brendan (Joseph Gordon-Levitt) has been in a deeper-than-usual funk ever since his girlfriend, Emily (Emilie de Ravin), left him for insecure, Mohawked druggie Dode (Noah Segan). She calls months later, her voice vibrating with suppressed hysteria. Brendan is ready to leap to her aid, but when they meet up a little later, she swears she's fine. Twenty-four hours after that, Brendan discovers her body in a culvert and vows to find out who killed her and why. His investigation cuts across the school's soc...