When DC Chris Skelton opens CID's post and discovers a human hand, DCI Gene Hunt and his team find they have a murder to solve. The only defining feature on the severed hand is a strange burn mark and DI Alex Drake and the team discover there have been a string of single women murdered across the country, each left with the same crescent-moon shaped burn. It seems all the women had one thing in common; they were members of the Crescent Moon Dating Agency. When Alex registers with the agency and gets nowhere she decides to take matters into her own hands and invents speed dating, much to the distaste of the agency's owner, Elaine Downing. Meanwhile, WPC Shaz Granger, feeling let down by the police force, has handed in her notice. But Gene manages to persuade her to take on one final operation, going undercover to catch the man they believe is the killer. As Shaz puts herself in the firing line it seems this may be her last sting in more ways than one... Fret not if viewing this all-important second episode causes you to miss the coverage of The Masters over on BBC2 at 9pm; there's further coverage from 10.35pm on BBC1. Yaaaay.