This is the video Michael Lohan claims proves that his ex-fiance Erin Muller needs help for a drug problem.
In a shameless act, Erin pushes a rolled note up her nose before swiftly snorting a white powder that appears to be cocaine - and every embarrassing second is caught in shocking detail on Michael's home video.
The bombshell tape - recorded before the couple's acrimonious split - is the latest twist in a crisscrossing bitter battle between the former lovers.
Erin has claimed the father of Lindsay Lohan physically abused her at least twelve times over the last two years -- including an incident in which he allegedly 'kicked her in the vagina,' according to a court filing.
Michael reckons those allegations are 'patently untrue' and come from a bitter ex scorned after he ended their engagement.
Now, he has released the scandalous video to RadarOnline.com in another act of revenge, claiming it shows how he once witnessed Erin snorting cocaine while in his bed.
The video shows Erin apparently holding a rolled-up dollar bill in her right hand before using it to push the white powder around to form a neat line.
Lines of the white powdery substance are clearly visible on the table.
With obviously well-practiced skill, Erin leans over and shoves the note up her nostril.
It takes just one second to snort the substance up her nose.
The video, which appears to have been shot without the woman's knowledge, is 30 seconds in length.
Michael -- a convicted felon-turned-Christian -- believes Erin is deeply troubled and needs help for frequent drug use.
In a December 17 court filing, Michael claimed Erin kicked him in the head when he tried to pull her out of the car because she was too "drunk and high" to drive.
The couple had been at his mother's for dinner.
Now he is planning to use this video as evidence to exonerate him in court.