Location Game Cloak & Daggers is an optional side quest in Deus Ex: Human Revolution, and has a similarly named achievement/trophy for completing it. Jenny Alexander, an undercover cop and a friend of Adam Jensen's from the Detroit police force, is investigating a police officer named Jack O'Malley, suspected of corruption, and could use Jensen's help. She is found in the Detroit streets, near the entrance to Derelict Row, undercover with a group of prostitutes.