From Beyond (1986)
Videos: Trailers, Teasers, Featurettes
A group of scientists have developed the Resonator, a machine which allows whoever is within range to see beyond normal perceptible reality. But when the experiment succeeds, they are immediately attacked by terrible life forms.
From Beyond streaming: where to watch online?
You can buy "From Beyond" on Vudu, Amazon Video as download or rent it on Vudu, Amazon Video online.