As a cop, John March once flirted with danger. Then his wife was murdered and his flirtation became full time engagement. Now he is a private investigator in one of the most dangerous places on earth, New York City. He is a loner whose job has destroyed every new attempt at a relationship. The one thing he has promised himself is that he will never mix danger and his private life again. But that's before his brother asks John to warn off the mysterious young woman who is blackmailing him. He knows her only as Wren. Principle identifying mark: a red cat tattoo. And that's before the woman's dead body is pulled out of the East River. People remember John asking questions about Wren. Now he is prime suspect in a homicide case.