Karaseen Falls (2015)

A middle aged cancer patient is holed up in a cabin with only medication and limited time to prepare for his live dance routine. While losing control over the painful side effects, he is constantly interrupted by a handful of unwanted visitors. Chemotherapy has rendered him weak and his painkillers have become ineffective, but his new "friends" offer alternative cures. They are here to help and creep a smile onto their host's face until they are faded by the unsettling feeling that he may never leave this cabin.