A young woman claims to be Erin’s half-sister, but is she telling the truth? The gang attempt to steal a rare and valuable rose.

After a tip-off from Dr Chris, Vinnie and the gang don some fancy dress and join a posh murder mystery evening at a stately home to gain access to its cellars stocked with valuable vintage wine.

A ratcatcher is hired to help with Jim's rat problem, but it is soon clear it's him who needs help.