“Exposed” (** out of four) was a muddled Redbox thriller starring Keanu Reeves as a police detective obsessed with finding the truth behind his partner’s suspicious death which uncovers police corruption and a secretive underworld involving a young woman (Ana De Armas). Lumpy mix of police thriller, underworld melodrama, and romance has its moments but doesn’t gel and come together to a satisfying whole. At 51 years old, though, Keanu Reeves looks almost exactly the same as he did in his “Speed” days.