New Year's Eve should be a time for celebrating. But for Detective Superintendent William Lorimer, this is one night he will never forget . . .

Called to a house after gunshots are reported, the carnage Lorimer finds there leaves him traumatised and questioning his future with Police Scotland.

Meanwhile, the body count is rising on Glasgow's streets. A number of known addicts are dying from accidental overdoses, but where would the city's poorest residents get hold of high-quality morphine?

As Lorimer struggles to return to duty, he spots a link between the deaths and an old case involving the euthanasia of vulnerable patients. It seems the killer has resurfaced - and it's up to Lorimer and his team to get him off the streets for good.

'Brings Glasgow to life in the same way Ian Rankin evokes Edinburgh'
Daily Mail

'Convincing Glaswegian atmosphere and superior writing'
The Times