New David Tennant drama Des has only aired one episode, but it has already broken a ratings record for ITV.
The first bit of the three-part serial killer series premiered yesterday evening (September 15), and has now become the broadcaster's biggest drama launch of the year.
The first episode was watched by an average audience of 5.4 million, becoming ITV's biggest drama debut since 2019's Cleaning Up.
Des peaked at 5.9 million viewers, and was watched by nearly a third of all viewers across its time slot period.
The series sees Tennant play real-life serial killer Dennis 'Des' Nilsen, who confessed to murdering up to 16 men over several years in London.
Last night's episode began with Nilsen's arrest in Muswell Hill after police discovered the remains of his latest victim, before he went on to provide police with a range of horrifying details about his victims.
Police then tried to piece together the identity of other victims while also trying to unravel Nilsen's motivations for the murders.
Tennant has already received a lot of acclaim for his chilling performance as Nilsen, while co-star Danny Mays has also been praised for his turn as Detective Chief Inspector Peter Jay.
Des continues tonight (September 15) at 9pm on ITV, with the final episode airing on Wednesday, September 16.
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