from the back of the book:
When the administrative head of the Steen Psychiatric Clinic is found dead with a chisel in her heart, Superintendent Adam Dalgliesh of Scotland Yard is called in to investigate. Dalgliesh must analyze the deep-seated anxieties and thwarted desires of patients and staff alike to determine which of their unresolved conflicts resulted in murder.
With "discernment, depth, and craftsmanship," wrote the Chicago Daily News, A Mind to Murder "is a superbly satisfying mystery."
I've also read these other books from the series:
#1 Cover Her Face
#5 The Black Tower
#7 A Taste for Death
#10 A Certain Justice
#11 Death in Holy Orders