Movie's information

The Synopsis:

6 Horticulture students studying 2nd year in college doing their Thesis on Plants and Trees.. 6 of them decides to go in a Resort far away from city to do a Thesis Ph.D. on plants for their Project.. They visits a Resort which is a Plant Resort..That Resort is on a very beautiful location surrounded by lot of Plants, Grasses, a Small River.... There they find the Caretaker of the Resort, The mali and some local people.. They stays there for 7 days...But in 7 days they finds lots of unnatural things happening with them and one by one of them is getting murdered and disappeared.. But this Murder was happening on a very different manner without using any kind of weapon or Rope... Who is the murdered ? Why is he doing this and how this murder is taking place and what weapon is the Murderer using to kill.. The Suspense reveals at end.