The band was formed in Skarzysko-Kamienna, Poland, in 2003. It plays melodic heavy/power metal.
In 2005, Nemesis (since it was the first name of the group) recorded their first demo, Dlon z Podziemi, at Digi-Art Studio in Konskie, Poland. The album contained four songs in Polish: W Sidlach, Upadek, Dlon z Podziemi and Bestia Pospiechu. The demo got very good reviews, which encouraged the group to work on new compositions.
At the beginning of 2006, the band changed its name to Night Mistress and from that time majority of lyrics was written in English. In April of that year, the group entered the Digi-Art Studio to record another demo called "In the Land of the Freezing Sun". It consisted of two Polish-lyric songs: Labirynt and Corka Nocy, and four English-lyric ones: Wind of the Gods, Freezing Sun, Battlefield of Lies and For Her.
In November 2010, the group finished the recording of their first LP, which took place at JR Studio, Skarzysko-Kamienna, Poland. The album is entitled The Back of Beyond and consists of nine tracks.
In September 2010, a Hollywood based record label 272 Records released a compilation “Kill City vol. 26” which included Night Mistress’ song Children of Fire. The track was also a single that promoted the record.
In March 2011, the band signed an agreement with a California based Hell Rider Records. The album was officially released on the 5th of May 2011 in North America.
In July 2012, Night Mistress recorded a song, Hand of God which is a single announcing the band's new album.
Link to the video: http://www.youtube.com/watch?v=7kVLdBN4tDE