One night Tila stumbles home, terrified and covered in blood. She's arrested for murder, the first by a civilian in decades. The San Francisco police suspect involvement with Verve, a powerful drug, and offer her twin sister Taema a chilling deal. Taema must assume Tila's identity and gather information -- then if she brings down the drug syndicate, the police may let her sister live. But Taema's investigation raises ghosts from the twins' past. The...