shadow of the laboratory

Many years ago, a group of scientists decided to conduct an experiment to study the effects of dark energy on living beings. They chose ordinary laboratory mice, hoping to control the transformation process. However, no one could have foreseen the consequences.
Over time, laboratory staff began disappearing. At first, these were minor incidents: someone would stay late and never come out, someone would enter a room and never return. Soon, it became clear that some sinister force had gripped the laboratory. Those who remained heard strange rustling sounds and saw shadows flitting in the corners of the rooms.

Once upon a time a man was turned into a mouse... and it was a successful experiment.