In the book "Religion Must Die, or in Whom We Will Believe After God", the theologian Viacheslav Aheiev explains how religions function, earn money, fight for power, use psychoactive substances and sex and how they respond to the new challenges - from LGBT and economic disasters to the wars and Covid-19. Why communism, despite the most brutal repressions, has not been able to destroy religion? How do the tentacles of conspiracy theories penetrate human consciousness, and why is critical thinking turning off when it comes to NATO's mosquitoes and reptiloids?