Tracking a local conman, Frank and Lu make some unlikely allies when they encounter a pair of deadly gangsters.

Frank and Lu investigate a death threat at Runningbrook, an exclusive tennis club which hides a toxic threat.

When an amnesiac wanders into their lives, Frank and Lu must work out what happened to him.

Frank and Lu investigate a missing person's case at a casino, where gambling is a matter of life or death.

Frank and Lu must clear their names when they are framed for various crimes by some mysterious doppelgangers.

In a race against the clock, Frank and Lu must track down a vital witness in a crown court trial.

Frank and Lu investigate a series of deadly 'accidents' on a psychic TV programme hosted by two warring sisters.

A missing person's case turns to murder as Frank and Lu investigate the disappearance of an eastern European oligarch.

When a LARP battle in the woods goes wrong, Lu and Frank must clear the Queen's name and catch the culprit.

When a pampered pet runs away from a life of luxury, Frank and Lu are tasked with tracking down the hound.