ゆみとは大学時代からの付き合いで結婚。ある日ゆみが料理教室に通うといい、一緒に通うことになったが、突然夫が海外出張に行くことになり、毎日ゆみの顔を見たいとビデオレター送ってくれと頼んだ。最初は心の支えになっていたがある日を境に違和感を覚えるようになった。日に日に激しくなるゆみと高橋。ビデレターの内容もエスカレートしていくことになる…。Yumi and I have known each other since our college days and got married. One day Yumi told me she was going to take a cooking class and we decided to go together、 but suddenly I had to go on a business trip overseas and asked Yumi to send me videos so I could see her face every day. At first、 she was supportive、 but one day、 things seemed a little out of place. Yumi and Takahashi became more intense day by day. The content of the video letters escalates as well...