Since 1929, Infinitum Research has been testing biological enhancements such as light refraction on innocent subjects. Funded by our own government, Infinitum continued illegally after the second world war. Now, it's 1995 and one subject escapes high security containment: angered, confused, dangerous... and invisible. A group of scientists are trapped in the building, haunted by the presence of 'Subject 617'. It's a frantic escape for freedom; before the scientists turn on each other amongst the paranoia...