When Robin Williams died last August, the world was shocked to learn his death had been a suicide.

But a new documentary is claiming to have more details into the late actor’s final hours — including allegations that he experienced increased paranoia.

The autopsy ruled his death a suicide that resulted from asphyxia due to hanging, though the coroner noted that superficial cuts were made to his wrists and a pocket knife was found nearby.

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Robin Williams’ wife recounted his bizarre behavior to authorities.

The documentary now claims he took the time to clean his bathroom of blood after slitting his wrists following hours of peculiar behavior.

‘Autopsy: The Last Hours of Robin Williams,’ which will air in the UK tonight, April 22, alleges the ‘Mrs. Doubtfire’ star was having an unusual episode prior to his death.

His wife, Susan Schneider, has said the Academy Award winner — who was suffering from Parkinson's Disease at the time of his death — was acting very paranoid when he crammed his collection of watches into a sock and took it to a friend for safekeeping.

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Happier times for Robin.

Pathologist Richard Shepherd explains, “This is a very peculiar incident that his wife describes as typically increasing paranoia that he had been suffering.”

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According to the upcoming documentary, after giving away his collection of watches, Robin reportedly spent the hours leading up to his death looking up drugs online, convinced he suffered from more than just anxiety and insomnia.

A coroner’s report determined he was likely suffering from Lewy body dementia — which Dr. Shepherd believes may have triggered his unusual behavior, as his online activity prior to taking his own life insinuates the father-of-three knew “there was something else wrong with him,” he explains in the controversial program.

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Channel 5, the network which is airing ‘Autopsy,’ has received criticism for the program, which includes a reenactment of his tragic death.

But the network refused to edit out the gruesome depiction, claiming it necessary in recounting what happened that day, adding, “The film celebrates Robin’s career and talent, and within that, the tragic details of his death are part of the story.”