FREE: The Butterfly Sign [steam key]

The listing, The Butterfly Sign [steam key] has ended.

http://store.steampowered.com/app/546700/The_Butterfly_Sign/

The Butterfly Sign is a detective in the first person, in which we will play for the only survivor of a major terrorist attack. The main character is the only witness to the incident, and his memories and his destiny. So he decided on a desperate measure. He takes an experimental drug “Rammax”, which puts it in the halls of your own mind and restores all the events with perfect accuracy. While in his own memoirs, the protagonist has grain for grain, the evidence over the evidence, seek out the guilty...
-------------------------------------------------------------------
if you have any problems with the activation key please provide screenshots.