The Quality of Mercy

A preview performance of a student production of The Merchant of Venice is cut short when the actor playing Shylock is stabbed to death with a prop knife. The victim was a womaniser and drug-user who, when he could not borrow money, stole instead. Lewis and Hathaway are working their way through a lengthy list of suspects when another person connected to the play is killed. In a separate investigation involving a con man, Hathaway faces a dilemma involving Lewis's past.