Yet Another Brief Teaser Clip for 'Paranormal Activity 4'

Ready for another brief clip from Paranormal Activity 4? Granted, you're going to learn nothing about the plot. It's just more walking around in the dark, random people appearing in the background and a home security system going haywire.

The movie opens October 19 nationwide, though we suspect there will be another Demand It campaign launching soon.

Follow along on Twitter @DerrickDeane and @Fandango.

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