The Mars Canon (火星のカノン, Kasei no Kanon) is a 2002 Japanese film directed by Shiori Kazama.
The film explores the relationship problems of two couples, Kohei and Kinuko, and Manabe and Hijiri, and the solutions they try to devise as a way out.
Kohei is married to another woman, and Kinuko, though she knows he will never divorce, can't bring herself to break off the relationship and start anew.
Hijiri, feeling rejected, moves into an apartment next door to Kinuko, where she plots to break up the mismatched couple to her own advantage.
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