Bipasha Basu's 'Alone' trailer scares Abhishek Bachchan, Ajay Devgn, Varun Dhawan and Karan Johar

Bipasha Basu's back on the silver screen in another spooky horror flick - Alone. And the trailer which released on Tuesday has been getting a lot of praises from industry insiders.

After Hrithik Roshan openly expressed his liking for the trailer on Twitter a day ago, Varun Dhawan, Ajay Devgn, Abhishek Bachchan and Karan Johar too followed suit.

All the four actors took to Twitter  and confessed that the Alone trailer has scared them a lot. With a lot of spine chilling moments and spooky elements in the trailer, the film looks to be promising. 

Here's what the four Bollywood celebrities tweeted about Bipasha's Alone trailer:

Varun Dhawan:

The scream queen is back and this looks really good just don't watch it #alone @bipsluvurself http://t.co/w6BXrZ5Z9P

— Varun RAGHU dhawan (@Varun_dvn) December 10, 2014

Abhishek Bachchan:

I am never ever going to meet @bipsluvurself ALONE again. http://t.co/MVS6ojixxF all the best with this one Bips. Scary as hell!

— Abhishek Bachchan (@juniorbachchan) December 10, 2014

Ajay Devgn:

This is something not to be watched Alone - http://t.co/5nDGogeQlH Best of luck @KumarMangat & @Abhishekpathak1 for #Alone

— Ajay Devgn (@ajaydevgn) December 10, 2014

Karan Johar: 

http://t.co/joK0XyKRlt this is super scary!!!! And seems completely intriguing!!! @bipsluvurself

— Karan Johar (@karanjohar) December 9, 2014