This takes sick, twisted and bizarre to a whole new level.

A woman took the spirit of Halloween a little too far when she stripped down and crawled into the carcass of a dead horse, then had her boyfriend film the disturbing show and post it on the Internet -- and RadarOnline.com has video of the highly disturbing “performance.”

The 21-year-old from near Portland, Oregon told Washington County Sheriff officers that she wanted to “feel at one” with a horse, reported KOINLocal6.com.