Sean Cribbin (Video still via Global News)

Sean Cribbin is living a nightmare — he discovered that the man he had a troubling sexual encounter with last summer turned out to be accused serial killer Bruce McArthur.

His interview will haunt you ...

Cribbin met McArthur after messaing on an app for quite a while. The two met up, Cribbin hopped into his truck, and Cribbin recalls mentioning the rumors of a gay serial killer on the loose. He says McArthur didn't react.

Instead, they talked more and, once back at McArthur's place, Cribbin accepted GHB and a drink, and they agreed to engage in bondage. Cribbin was okay with having his limits pushed, but he felt right away that McArthur was not respecting his limits at all. He was unable to breathe at one point as he says McArthur raped his throat, cutting off his airway.

I was physically to the point where I was giving panic and I was panicked, but in that type of play, there's some expectation of trying to find that area where it's close to the edge ... That's the only memory I have from it is just this overall — I couldn't breathe, I couldn't breathe, I couldn't breathe.

Watch, via Global News:

Horrifyingly, Cribbin seems to have been photographed or videoed during the act, and police indicated to Cribbin that he was in a kill position.

Also of interest, Cribbin confirms that McArthur's roommate was in the dwelling by the end of the encounter, apparently unaware of what was going on — and what almost happened.