The Unkindness of Ravens were inspired by figures from Norse and Celtic mythology such as the Valkyries and The Morrígan. Filming took place during 2014 in Fife, Edinburgh, and Perthshire, and moved into post-production in 2015. To help with costs, Brewster opened a crowdfunding campaign through Kickstarter, with the goal to raise £40,000. The campaign was successful and marked the first Scottish crowdfunding campaign to raise such a large amount of money and the highest funded British horror film on Kickstarter. Horror film critic Kim Newman reviewed "The Unkindness of Ravens", writing that it was "a demanding, complicated film which might well require repeat
Creatures of the Night the Night" is remixed, and "Saint and Sinner" and "Killer" are interchanged from side to side with each other. The bootlegged Vinnie Vincent cover has not been released on CD, but an extra rare Vincent cover has been called "Hiding from Tomorrow". There is also a bootlegged LP which shows up on eBay from time to time which states to be a Brazilian promo version with Vincent in make-up airbrushed over Frehley. Ace Frehley's "Origins, Vol. 1" album (2016) included a cover of “Rock and Roll Hell”. "Creatures of the Night" was certified gold by the RIAA on May 9,