《这个杀手不太冷》主题曲《Shape of My Heart》的歌词如下：

主歌部分

He deals the cards as a meditation

He plays them never suspecting

His opponents never suspecting

He doesn't play for the money he wins

He doesn't play for respect

He plays the cards to find the answer

In the sacred geometry of chance

He seeks the hidden law of probable outcome

副歌部分

He deals the cards to find the answer

In the sacred geometry of chance

He seeks the hidden law of probable outcome

完整歌词

这首歌由Romain Polanski为电影《这个杀手不太冷》创作，融合了神秘主义与情感表达，成为经典电影音乐的代表作之一。歌词通过纸牌游戏隐喻人生哲理，副歌部分则以深情的旋律和歌词成为影片情感核心。