The theme song of the movie "Lust, Caution" starring Tang Wei and Tony Leung is "Wong Chia Chi's Theme".

"Wong Chia Chi's Theme" is the theme song of Ang Lee's 2007 film "Lust, Caution". It can also be called "Wong Chia Chi's Theme Song". The composer is French composer Alexandre Desplat. This piece, composed of piano and strings, has a touch of sadness, a hint of desolation that is about to stop speaking, and there is uneasiness hidden in the elegance.

The heavy feeling of the opening melody truly reflects that era. The highlight of "Wong Chia Chi's Theme" is that it uses the piano to show the inner suffering of Wang Jiazhi, a woman who is constantly struggling between ideals and love, with a touching sadness.

Singer's brief comment:

Desplat's scoring method does not match the picture with music in a point-to-point way, but uses a meditative style to lay out the mood of the film. In the soundtrack of the latest work "Lust, Caution", the film's tragic atmosphere is accurately grasped, and the poignant but slightly tragic atmosphere is meticulously laid out.

The theme melody implies uneasiness and ominousness in its elegance. The cello playing the lead is closely linked to the emotions of love and assassination, and the accompanying instruments, whether piano or strings, make the song feel uneasy and ominous. The endless aftertaste deeply stirs the tears in the hearts of movie viewers. The charm of Desplat's music is especially touching in the film's wordless sequences.

The soundtrack has become the dialogue of the characters, easily expressing the unspeakable multiple desires and lingering deep sadness in each character's heart.

Reference for the above content: Baidu Encyclopedia-Alexandre Desplat