The Butterfly House (2021)

"A compelling new crime thriller featuring Copenhagen-based police detectives Jeppe Korner and Anette Werner, who work to solve a series of sordid murders that have roots in the care of vulnerable hospital patients and at-risk children -- and to expose a murderer who specializes in cold, cold blood..."-- Six days ago a paperboy on his route in central Copenhagen stumbled upon the naked body of a dead woman, lying in a fountain with arms marked with small incisions. Cause of death: exsanguination-- the draining of all the blood in her body. Lead Investigator Jeppe Korner, recovering from a painful divorce and in the throes of a new relationship, pounds the streets looking for answers. His partner, Anette Werner is on maternity leave, restless at home with a demanding newborn and an equally demanding husband-- and decides to do a little freelance sleuthing. Their investigations uncover the ambition and greed that festers beneath the surface of caregiving institutions. -- adapted from jacket