Dear Heart (2009)

Dear Heart is a Japanese movie written by Hidehiro Ito and directed by Satoshi Isaka. It was released in a collaboration by Excellent Films and Go! Cinema on December 5, 2009.

Reiko Takashima stars as Miwako, the wife of a heart transplant recipient named Shinji (Takaaki Enoki) who suddenly begins acting strangely following his surgery.

After some investigating, she discovers her husband’s new heart was previously in the body of a homicidal maniac whose spirit has taken control of him. She attempts to force him to see reason, but he is soon completely overcome by the madness of his heart’s previous owner.