Last Place You Look by Louisa Scarr

When does a secret become a crime?Jonathan Miller and his wife are invited to his best friend's lavish 40th birthday celebrations. Four days later, Jonathan is dead, apparently asphyxiated during a solitary sex act gone wrong. A tragic case of misadventure.
DS Robin Butler is accompanied by his new partner DC Freya West to give a death notice to the widow. He can't understand why West behaves like a nervous rookie. He doesn't know that the victim was West's lover, and until that moment she had no idea he was dead.
West is devastated and confused. Jonathan's wife hints that he was troubled, and West chooses to withhold her connection to him. If it came out it would end her career. Yet she cannot accept any version of events other than murder. His wife, she is sure, is lying.
As the pair investigate, Butler's past and present also collide. When the truth is finally revealed, there is no mistaking who the guilty parties are. But can...

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