Charlotte is invited to a wealthy client's house for lunch, but she finds herself at the mercy of a killer. Meanwhile, Lovejoy is sent on a wild treasure hunt through East Anglia.

Tinker is in a very strange mood: he abandons Beth at a bus stop, ruins a deal for Lovejoy and leaves a pint of beer half drunk. Then he disappears without trace.

Tough businessman Frank Whymark hires Lovejoy to recover a priceless Samurai sword stolen from his home.