Radio Times: Review by:; David Butcher

No case is too old or too tenuous for the great minds of Ucos to pursue. If you ever think you’ve got away with a murder, even decades after the event, don’t relax, those wily old geezers and their glamorous boss will hunt you down like a pack of greying wolves.

Tonight, they take on the case of a homeless man strangled on a London tube train 15 years ago. The victim’s identity was and remains a mystery – there were no witnesses, no photos taken of his body, no forensic evidence and no CCTV images. But our heroes love a challenge.

And if there’s anything they love more than a challenge it’s posh people with something to hide: it turns out the victim had some well-to-do relatives, not all of whom welcome a visit from the police. Neither do the victim’s old associates among the homeless. The real fun and games come when soft-hearted Brian tries to immerse himself in their sub-culture and ends up losing more than his shirt.

About this programme

2/10. DNA tests on a suspected robber prove his innocence but also reveal his father was an unnamed vagrant strangled on a tube train 15 years ago. The team reopens the case, going in pursuit of the victim's other family members - including the man they believe to be his brother - while Brian questions the homeless community, only to fall foul of a gang of robbers. Peter Davison (At Home with the Braithwaites) and Keith Allen (Robin Hood) guest star in the crime drama.