Red Tears (紅涙) is a 2011 Japanese splatter film directed and co-written by Takanori Tsujimoto.

[1] Kurata gave Tsujimoto the elements he wanted in the film (vampires, female protagonists and opportunities for extended action fight scenes) and had him build a story around them.

[1] Screenwriter Eiichi Yonekawa wrote a script involving two police detectives in Tokywo who are trying to catch the serial killer.

Producer Yasuaki Kurata stated that for overseas distribution that the English title will be Sword of Blood.

[2] Red Tears premiered at the Tokyo International Film Festival on October 24, 2011.