Hidden 3D (2011)

Plot

Scientist, Susan Carter, is researching the rehabilitation of addicts using an experimental drug in her center. After her death, her idle son Brian Carter is forced by his friend, Simon, to travel to the property that he inherited. Brian and Simon travel with five other friends and find that the center is actually an ancient monastery, and they have to spend the night. Soon, they are murdered one by one, by creepy creatures that live in there...