爱情情歌

After Carlos, an impoverished teen from a fractured home, receives a desperate note from Sarah, a pen pal he lost touch with a year ago, he uses her letters to solve the mystery of her disappearance and crimes she may have been a part of.。作为一名老教授，他始终情系家乡，退休后放弃优越的城市生活，却在贵州老家的一个小山村驻足，义务支教很多年……他与退休教师的老伴共同开启一扇窗，让那里的孩子和乡亲们开启了智慧之窗，引领他们认知、发现新的世界……。