From Amazon.co.uk:
In surreal Bangkok, city of temples and brothels, where Buddhist monks in saffron robes walk the same streets as world-class gangsters, a US marine sergeant is killed inside a locked Mercedes by a maddened python and a swarm of cobras. Two policemen - the only two in the city not on the take - arrive too late. Minutes later, only one is alive.

The cop left standing, Sonchai Jitpleecheep, is a devout Buddhist and swears to avenge the death of his partner and soul brother. To do so he must use the forensic techniques of the modern policing and his own profound understanding of the mystical workings of the spirit world.Both will be vital as he immerses himself in the moneyed underbelly of Bangkok - where desire rules and where he will eventually find the killer, a predator of an even more sinister variety...

Left at the book exchange.

Release #15 for the 2021 Oh, the Places We Can Go Challenge.