Dark Heart, STV, 9pm

It seems fitting that the first episode of this crime drama aired on Halloween – it has featured some very grisly murders. It gets off to a dramatic start when the body of a young woman is found in an east London church. DI Will Wagstaffe and the team get an apparent lead when it turns out that she has recently been dealing with a stalker, but is her tormentor responsible for her death or could her murder be linked to her complicated personal life?

Trust, BBC2, 9pm

It’s based on a true story but that hasn’t made this series about the Getty family any less gripping. The last episode is particularly intriguing as it explores how the Gettys and the Italians deal with the repercussions of the kidnapping, and follows Chace as he embarks on a new journey. While some aspects won’t come as news to those familiar with the tales, there may still be a few surprising revelations and intriguing suggestions – and, of course, there’s also that first-rate cast.

James Bulger: The New Revelations, C5, 9pm

This documentary looks at the case of James Bulger, who was kidnapped in 1993 from a Liverpool shopping centre at the age of two and murdered by Robert Thompson and Jon Venables. Consisting of testimony and evidence from those who knew them and dealt with them at the time of the prosecution, this documentary offers new and startling evidence, throwing light on what turned two 10-year-old boys into killers.

Grand Designs: House of the Year, C4, 9pm

Kevin McCloud, architect Damion Burrows and design expert Michelle Ogundehin visit five more inspiring homes in the running for the 2018 Royal Institute of British Architects House of the Year, including an old Victorian gin distillery in east London transformed into a remarkable modern home and a turn-of-the-century farmhouse in Devon given new life by mixing the traditional with the contemporary.