Halloween got a bit crazy for Paris Hilton & Doug Reinhardt this year!  

 After the couple left Heidi Klum’s party at hot spot Voyeur, they headed to The Roosevelt Hotel – where things just got insanely obnoxious.

The heiress and her beau had been spotted drinking heavily, and upon leaving got in a HUGE fight with one another. 

The two were spotted in their car screaming and yelling, causing Doug to toss Paris’ precious Blackberry out the window on Sunset Blvd.!  Paris and a friend jumped out to look for it, but had no such luck finding it.

When Paris got back in the car, the fight turned PHYSICAL!  

Miss Paris was heard saying she wanted to “kill” Doug and was seen hitting and slapping him several times.  He did his best to wrap his arms around her to restrain her, but was squeezing her a bit too tight.   Paris’ friend had to jump in and remove Doug’s hands from Paris to help break things up.

Scary!

Paris eventually got her phone back from x17Online.com photographers after her sister, Nicky, called the phone several times.