Michael investigates a series of cat burglaries; the most recent is the theft of a priceless ruby necklace. The burglar leaves a calling card behind and Devon indicates he was once robbed by a thief with a similar modus operandi named Raymond Fallon; although he was never caught. Devon also mentions Fallon was killed in a plane crash a month earlier so it couldn't possibly be the same thief. This burglar happens to only be stealing from other criminals and they don't report the thefts to authorities. Michael wonders if Fallon taught his criminal trade to someone else and suspects Fallon's daughter, Grace. Grace admits she in fact trained with her father, but she is not responsible for the recent thefts. Michael soon crosses paths with a trigger-happy police detective, George Barth, who sus