Sky1 is to screen the intimate video diaries of a heroin addict in the months leading up to his death as part of a hard-hitting new documentary.
The documentary, with a working title An Addict's Last Days, will feature the video diaries of 34-year-old Ben Rogers, who began recording his battle against heroin addiction in the three months before he entered rehab.
Rogers died of a brain haemorrhage the day after he admitted himself to hospital.
He carried on videoing himself up until the day before he went to rehab, with the final scene showing him desperate for his last hit.
His mother, Anne Rogers, gave independent production companies Gecko Productions and Junction 15 access to the videos, which form the centrepiece of the 60-minute film.
"It's all very painful to watch but I'm willing to go through it time and again if it can help stop the same happening to other youngsters," Rogers said.
"The final scene is perhaps the hardest. Ben is desperately searching for a vein to inject into. He looks as if he is dying as the heroin passes into his body. It's as if you can see his life just ebbing away."
Olly Lambert, the director of the documentary, said he was moved when he first saw the video diaries.
"It's incredibly rare to come across such raw and unflinching footage of a man so close to an abyss, and I was literally speechless when I first watched it," said Lambert.
Ben Rogers in TV documentary An Addict's Last Days. Photograph: Sky Ben Rogers as a schoolboy
"I hope it will be a way for people to get a visceral understanding of the nature of addiction, and it will be a privilege to try and unpick who Ben really was using the intimate legacy he's left behind."
The Sky1 commissioning editor of factual, Andrew O'Connell, said: "Ben and Anne's bravery in documenting this tragic period will undoubtedly make for one of the year's most powerful films."
Sky1 said the video diaries chart "Ben's lies and manipulation as he mixes his next hit whilst telling his mother Anne he is clean and making a new start".
"The film reveals Anne's anger and tears as Ben loses his fight against the drugs and shows how father Mike's unconditional love is tempered by his total resignation that they have lost the battle against their son's addiction," the broadcaster added.
The documentary, which will be executive produced by Vivian McGrath, will be broadcast on Sky1 and Sky1 HD in October or November.
McGrath said: "This film is an incredibly intense and very moving portrayal of one man's descent into the final stages of addiction.
"But it also reveals an intimate portrait of one ordinary middle class family's 13-year battle to save their son."