A scorching August day, and a handsome young man is found dead in his bath. Suicide is not a detective inspector's business, but Bill Slider's colleague takes one look at the body and calls in his boss: "It don't look right to me, guv."
Detective Chief Inspector Monica Paniatowski needs to find out who a body dumped on the river bank is. But the chief constable refuses to let her follow the obvious trail, making her life even more difficult.
Dr Siri's wife, the famous Madame Daeng, has a dark and complex past. Until now, it has been a well-kept secret. But when our intrepid coroner whisks her away for the weekend, they encounter another threat. Is she a ghost? A witch? Dr Siri must unravel the mystery.