Murder, madness, glamour and greed: The dark heart of the 'House of Gucci'

With the contract killing of a fashion magnate by his ex-wife, amid the sort of squabbles and underhand dealing that could easily feature in a soap opera storyline, the Gucci saga was irresistible to director Ridley Scott. As "House of Gucci" premieres in London, we check out its stars Lady Gaga, Jared Leto, Jeremy Irons and Adam Driver on the red carpet.