Hester, an AI expert, is working as a security officer for the company to pay off her medical bills after surviving a terrorist attack. She now has a prosthetic left eye, ear, arm and leg. She receives an unexpected encrypted message from another survivor. Before she can respond, he is dead. She asks to be assigned to the team on his case. I really enjoyed this sci-fi mystery. I had one aspect figured out, but it didn‘t take anything away.