Deep water / Amanda James.

Previously published under the title Rip current.

"DI Bryony Marshall has been on the tail of Kenny Ransom for two years. He’s involved in prostitution and trafficking, but there’s never been any real proof. To complicate matters further, Bryony’s best friend from childhood is his daughter Imogen. Bryony worries about admitting the fact that she is trying to put Imogen’s dad away, but unexpectedly, Imogen turns on her father and helps the police. Kenny finds out and swears he’ll get his revenge. Sick of being in the police force, Bryony visits her mother in Cornwall and considers starting a new life. While in Cornwall, Bryony saves the life of a man caught up in a rip current in the sea. But who is this stranger? And is Kenny really bent on revenge?"--Publisher description.