So far we’ve only had word of mouth, a strange image (shown above), and a creepy-as-hell clip to inform us about Insidious, a new horror/thriller from director James Wan and writer Leigh Whannell. If those names sound vaguely familiar, it’s probably because they started the Saw franchise.

Insidious stars Rose Byrne and Patrick Wilson as a couple who are trying to prevent evil spirits from “trapping their comatose son in a realm called The Further.”

Not much else is known about the film beyond that, admittedly, vague description but sometimes you don’t need to know a lot about a movie to enjoy it – in fact, going in as an open slate, is often the best thing.

This new teaser doesn’t really give us that much more insight into the actual plot of the film. However, it does continue to showoff the eerie vibe already set by the first clip and any imagery we’ve already seen from the film.

Check out the teaser trailer below:

Wan and Whannell burst onto the horror movie scene pretty much out of nowhere in 2004 with the first Saw.

In my opinion it was an original, refreshing and rather ingenious little film that still holds up under repeat viewings to this day. For whatever reason the premise of it – a vigilante forcing people to figure ways out of death traps before a timer runs out – caught on with mass audiences and a whopping six sequels (and counting?) were spawned. Unfortunately the series went the way of “see how much blood and gore we can fit into 90 minutes” instead of focusing on the cleverness and originality that made the first Saw stand out in the first place.

As director, Wan went on to make a few more films including the revenge thriller Death Sentence starring Kevin Bacon and the doll-themed horror flick Dead Silence (which Whannell also wrote). Now Wan and Whannell are back with “a phenomenon for a new generation,” as the above teaser boasts. Will Insidious have even half the impact that has Saw had? At this point I can’t see this morphing into a franchise of the caliber – but you just never know in this business.

Could 'Insidious' become a hit like 'Saw'?

Franchise or no franchise we can hope that Insidious will be a worthwhile film to spend our time and money on – and not simply waste all of its potential. Comparisons to just about every haunted house film are inevitable here but, from this teaser and the clip we’ve seen before, I’m confident Insidious will bring something new to the table.

Insidious creeps its way into theaters on April 1st, 2011 (no joke).