日本神户某个飘雪的冬日，渡边博子（中山美穗）在前未婚夫藤井树的三周年祭日上又一次悲痛到不能自已。正因为无法抑制住对已逝恋人的思念，渡边博子在其中学同学录里发现“藤井树” 在小樽市读书时的地址时，依循着寄发了一封本以为是发往天国的情书。 不想不久渡边博子竟然收到署名为“藤井树（中山美穗）”的回信，经过进一步了解，她知晓此藤井树是一个同她年纪相仿的女孩，且还是男友藤井树（柏原崇）少年时代的同班同学。为了多了解一些昔日恋人在中学时代的情况，渡边博子开始与女性藤井树书信往来。而藤井树在不断的回忆中，渐渐发现少年时代与她同名同姓的那个藤井树曾对自己藏了一腔柔情。
|中山美穗 (Miho Nakayama)||饰||Itsuki Fujii / Hiroko Watanabe|
|丰川悦司 (Etsushi Toyokawa)||饰||Akiba Shigeru|
|范文雀 (Bunjaku Han)||饰||Female itsuki's mother|
|篠原胜之 (Katsuyuki Shinohara)||饰||Female itsuki's grandfather|
|酒井美纪 (Miki Sakai)||饰||Itsuki Fujii as a young girl|
- 没人知道，这种事，偷偷地做才有意义哦 更多>
|出品公司||Fuji Television Network|
|发行公司||Nippon Herald Films (1995) (Theatrical) (Japan)|
|Fine Line Features (subtitled) (1998) (Theatrical) (United States)|
|Nihon Eiga Satellite Broadcasting (2012) (TV) (Japan)|
|Joyncontents Group (2013) (All media) (South Korea)|
|A-Film Home Entertainment (2005) (DVD) (Netherlands)|
- Itsuki works in the Otaru library in the film. The building used for both exterior and interior library scenes was originally an office of the Nippon Yusen Co. Ltd., a major shipping company. This two-story European Renaissance stone structure was completed in October, 1906, and shortly after its completion, the commission to determine the Russo-Japanese border on Sakhalin Island met in the second floor meeting room in accordance with the Portsmouth Treaty following the conflict between the two countries. The building was bought by the city of Otaru in 1955 and became a museum. In March, 1969 it was designated as a National Heritage Structure due to being an important late Meiji period stone structure.
- Scenes set in Kobe were actually shot in Otaru. Kobe gets very little snow, whereas Otaru being farther north (on the island of Hokkaido) gets considerable snowfall. In the scene under the opening credits of the film, Hiroko walks through deep snow to a group of houses downhill. She actually starts walking along the lowermost portion of a ski run on Mt. Tengu that terminates in the street where the houses are found. Otaru stretches out below the houses, with Ishikari Bay of the Sea of Japan on the horizon.
- Was the highest-grossing Japanese film in South Korea, except Japanese animation.