Vraždy v kruhu is a Czech crime television series directed by Ivan Pokorný and starring Ivan Trojan, Richard Krajčo and Hana Vagnerová. It is based on the script by Ivy Procházková.. The specifics of the series is the connection of criminal stories with astrology. It consists of 12 episodes which form the skeleton of 12 different crimes committed from motives that are attributed to the 12 signs of the zodiac. Czech Television prepared it for its premiere broadcast on 5 January 2015, in the main Monday evening slot which is established for detective stories. The last episode aired on 23 March 2015.