In the event that this evening's edition of Tonight (8.00pm), which looks at how the reign of cheap flights has well and truly ended for good, wasn't enough to depress you - here's a new series of Robson Green trying to look moody. In the first of four two-part stories, psychologist Tony Hill investigates what appears to be the honour killing of a young Kurdish woman. However, the site where the body was found yields remains of other victims and an even more gruesome motive for the crimes. New colleague Chris Collins (Cristian Solimeno) seems reluctant to pull his weight when a middle-aged teacher of his acquaintance is added to a growing list of the dead.