Cassandra Petit-Charles does not need or want a partner. She wants a man from her past who she can never have. Fine, then. Loneliness. In fact, she's made a business out of being a lone wolf, Domestic Extractions, where she helps teens get out of street life. Her most recent charge is entangled with Boston's oldest and most notorious gang, and she won't be able to keep the kid safe by herself. But does his caseworker, Harmel Preston, have to look so good with a gun and pray like he's got a direct line to God? With Harmel as a partner, Cassie will have to confront the darkness of the streets and her heart. Dangerous indeed.