A frightening series of events escalates when a successful family man hears of his estranged brother's disappearance. He visits the run-down neighborhood where his brother was last seen, and where a woman was recently murdered by a mysterious killer in a motorcycle helmet. He spirals into guilty memories of the embittered past he shared with his brother, while becoming concerned that his wife and daughter were follower home by a helmeted stranger. As the mystery unravels, so does the father's sanity, but he must put himself together in order to protect his family from a killer hiding in plain sight.