Jarvis Cocker becomes a nightwatchman in a high rise office block as he continues his nocturnal exploration of the human condition.

Decked out in regulation uniform and armed with a powerful torch, Jarvis starts his rounds protecting London's 36 storey Euston Tower. Along the way, he hears tales from others keeping watch during the dark hours.

Among those who share their stories of late night vigilance are the parents of a young girl with a rare condition which causes her to stop breathing when she falls asleep; a man at a control centre in Portsmouth who monitors the Indian Ocean for Somali pirates and a former spy recalling a dangerous meeting with a Middle Eastern agent.

For Jarvis, the strain of this late lonely night starts to takes its toll as he attempts to play table tennis - with himself.

As ever, the stories in tonight's dark vigil are accompanied by Jarvis' own musical selections.

Producer: Laurence Grissell.