Catch the culprit before the clock runs out.

Beneath the glass towers of Canary Wharf, a CEO lies at the foot of a stairwell. The fall looks too neat, the story too polished. Everyone has an alibi. Only one of them is lying.

A million-pound Bitcoin fortune vanishes from a locked Canary Wharf apartment. No forced entry, no witnesses, just a tangle of suspects with secrets to bury. Follow the money before the trail goes cold.

A gang leader collapses moments after drinking his signature blue slushy. Work the CCTV gaps, chemical traces and rival agendas to expose who poisoned the cup, and who only wanted you to think they did.

At 38,000 feet on an overnight flight to Singapore, a hospitality tycoon is found dead in his sealed business-class suite. The cabin has no cameras, but the aircraft logged almost everything else. Read the records, break the alibis and unmask a killer who never left their seat.

A reunion weekend at a remote Highland lodge, cut off by a blizzard. By dawn the host is dead, and the only witnesses are the building's smart-locks and the guests' own smartwatches.

In 1988 a coroner called it misadventure: a young clerk drowned below a reservoir sluice. Thirty-eight years on, a wall collapses, a falsified survey surfaces, and modern forensics reopen the file. The inquest itself was doctored. Prove it, and name the man who got away.

A schoolboy carries a forty-two carat black diamond into an elite Surrey school to show off. By day's end it is gone. Four friends knew his locker code, ninety-six seconds are missing from the corridor camera, and somewhere on site a resin trophy blank is curing eight and a half grams too heavy. The first case with real CCTV footage to examine, frame by frame.

Six weeks of food going missing from an office fridge stops being a joke when a labelled lunch is laced and the wrong person ends up in A&E. No camera watches the fridge. The badge readers, the coffee machine and the meeting software watch everything else.