Karen Chisholm

For review at http://www.newtownreviewofbooks.com(link is external) this is the first of the Rainbow books

From the Blurb:

She's a surgeon, she's beautiful and she desperately wants Mister Rainbow to shed some light on her husband's past. But when he does, she wishes he hadn't. Because what Rainbow discovers is a handless hood - and a whole lot of murders.