A Box Full of Darkness — Derek Fee

SOLVING A COLD CASE CAN CHNAGE YOUR LIFE FOR THE BETTER, OR THE WORSE
Detective superintendent Ian Wilson's life is on a downward spiral. His partner is gone and he's lost the job he loves. Then he's handed a 42 year-old murder case to solve. The case file is non-existent and the trail is colder than the arctic. As he peels away the layers of deception, he discovers that he hasn't been given the case by accident. Someone is intent on destroying Wilson and solving this cold case might just do it.