The Masked Singer is a Bulgarian reality singing competition television series based on the Masked Singer franchise which originated from the South Korean version of the show King of Mask Singer. It premiered on Nova on 14 September 2019 to 4 December 2021 All episodes of the series are broadcast live.

Four law enforcers with uniforms create a tangled up story, starting as a small town, cheating quarrel, but ending with a murder.