Disgraced ex-Met detective Pete Bond is drowning his sorrows in a Shinjuku izakaya after failing a job interview. His background in 'national security' convinces an American, Harrison Thom, to offer him a job to find his daughter who disappeared soon after arriving in Tokyo.

The trail leads to a hostess club and a dohan Amy went on, and Pete thinks she may have been murdered. Events take an unusual turn when a photograph of Amy shows up, replicating a dark scene in an underground film.

Meanwhile, on Pete's instruction, Suzi Sloane has picked up Harrison Thom in his hotel bar. Her brief: to find out whether he actually has a daughter.

Soon, events spiral out of control, and Pete fears he is being drawn into something he should resist. But his detective's instinct won't let him give up.

Sin Garden is the second book in the Tokyo Noir trilogy by Nick John.