One to keep an eye on methinks. From Director Aleksander Nordaas comes this tale based on Norwegian folklore. The teaser doesn't give too much away, although I did find this info over on the excellent Twitchfilm.com.
Nordaas' picture revolves around a huldra - a seductive forest spirit who appears from the front to be a beautiful young woman but who also has a cow's tale and whose back appears to be like a hollowed out tree. The huldra has been known to offer rewards to those who satisfy them sexually and death to those who fail to do so and are also prone to stealing human babies.
The film has a Facebook page which can be found here