The Bodies in the Beach - Paul Stephens

Faced with an unsolved murder and no clues, Detective Sergeant Mary Miller risks her career by trusting Michael Slade, the eccentric shop worker who seems to know more than he should about the case. There's more to Michael than meets the eye - but does that include being a killer who gets his kicks by playing games with the police?
"A rattling good read." ..".every time I thought I knew where it was heading, something else would appear to make me think again." - Amazon customer reviews
The Bodies in the Beach contains some strong language, and one scene where a character uses sexually disparaging comments as provocation. There are no descriptions of violence or sexual acts.