Per 
Special Containment Procedures : SCP-5555 is impossible to contain due to its chaotic anomalous abilities. The closest the Foundation has ever gotten to containing SCP-5555 was when SCP-5555 was surrounded by 126 layers of solid concrete. SCP-5555 took only 18 minutes to escape its containment. Any sightings of SCP-5555 is to be reported to the administration.
Description : SCP-5555 is an indescribable shadow of unknown size or shape. Any attempts to describe SCP-5555 have failed and all subjects who have attempted to describe SCP-5555 have failed to do so. People with a mental illness identify SCP-5555 as a silhouette of a human male. All subjects who have maintained eye contact with SCP-5555 for more than 1 minute will become mentally ill and die within 20 seconds. SCP-5555 moves in a chaotic method teleporting every 2 minutes in a radius of 500 miles.
