Zero Focus (ゼロの焦点, Zero no shōten) is a 1961 Japanese crime drama film directed by Yoshitarō Nomura, and co-written by Shinobu Hashimoto and Yoji Yamada.

One week into newlywed Teiko Uhara's marriage, her husband, ad agency manager Kenichi, leaves on a short business trip to Kanazawa and doesn't return.

With a pair of old photographs she found among his belongings, Teiko travels across Japan to search for him, first with the help of her husband's employer, later on her own.

After a series of mysterious deaths, including a reception girl of the agency's Kanazawa branch, who turns out to be Kenichi's common law wife, and Kenichi's alleged suicide, all clues lead to Sachiko Murota, wife of a wealthy business partner of her husband.

Teiko confronts Mrs. Murota and blames her for murdering Kenichi and everyone who knew of her past as a prostitute in the post-war era.