Silence

Six years ago, Jack Till helped Wendy Harper disappear. But now her ex-boyfriend and former business partner, Eric Fuller, is being framed for her presumed murder in an effort to smoke her out, and Till must find her before tango-dancing assassins Paul and Sylvie Turner do.
The Turners are merely hired to do a job, though, and prefer to remain anonymous. When they find that a middleman has let the true employer know their identities, finishing the job is no longer enough. Their fee just went up.
Full of masterful plotting and unnerving psychological insight, "Silence "is a mesmerizing thrill ride.