The album is the group's second 'Red' and 'Velvet' album, after releasing Ice Cream Cake in 2015. The EP consists of seven tracks, including "Russian Roulette".

Despite earlier reports of Red Velvet having a summer comeback,S.M. Entertainment announced that the group will release a new album in September. Member and leader Irene talked about the difficulties the group faced while preparing for the album on the September 9 broadcast of the radio show Super Junior's Kiss the Radio and stated that it was "physically and mentally tiring as the comeback date kept getting postponed".

After revealing the first teaser on September 1, they announced that the group will release their third extended play on September 7, with 7 tracks in the album. They revealed the album was to be called Russian Roulette, the same name as its title track.

The title track "Russian Roulette" is a synth-pop song that has an arcade sound feel with a retro 8-bit sound source. The song was produced by Albi Albertsson, Belle Humble and Markus Lindell who also had a part in producing their previous album's title track "One of These Nights". Its lyrics compare the process of winning someone's heart with a game of Russian roulette. On the September 13 broadcast of SBS Power FM radio show "Choi Hwa-jung's Power Time", the members revealed that the song was written before they debuted. They heard the song then, when they were still trainees, not realizing they would release it.

"Lucky Girl" is a retro-style dance-pop song produced by Hayley Aitken and Ollipop with lyrics written by Kenzie. "Bad Dracula" was produced by Tomas Smågesjø, Choi Suk-jin & Nermin Harambasic from Dsign Music and American singer-songwriter Courtney Woolsey with lyrics by Jo Yun-gyeong, who also wrote the lyrics of the title track. "Sunny Afternoon" is a 90s throwback, slick song and is produced by Swedish producers Simon Petrén & Andreas Öberg, Maja Keuc and Kim One with Korean lyrics written by Jeong Ju Hee. "Fool" is an acoustic pop song written by 1월8일 of Jam Factory and composed by Malin Johansson and Josef Melin. "Some Love" is a tropical house song written and produced by Kenzie, while "My Dear" was written and produced by Hwang Hyun of MonoTree.

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Wikipedia