2×1 aka 2×1 ツー・バイ・ワン is a film from Japan, released in 2019, starring Iori Kogawa, Kana Suzuna, Itsuka Hizuki, Atsushi Tsuda, Rina Usaki, Maki Yoshihara, Ryô Asagiri, Shinjiro Takahashi and directed by Yasushi Koshizaka.
Plot: Two brothers kidnap and abuse women. Once the new woman’s “training” is complete, the previous victim is released.