一段多年的感情却仍经不起现实的考验，恰似那坠落于森林深处的纸飞机，所有的秘密与真相注定被时光所埋葬......阿琪和阿森是一对从高中到大学一直感情很好的姐妹，她们都对未来怀揣着美好的梦想。在步入大学后的某天，阿森却迎来了她人生最大的噩梦，在噩梦的笼罩下倔强的阿森选择了自杀身亡。知道真相的阿琪去警察局揭发了恶魔的罪行。然而事实的真相却没有那么简单......

Affection with years still fails to go through the test of reality, which is just like the paper plane falling deep into the forest. All the secrets and truths are destined to be buried by times... Qi and Sen have been best friends since high school till university and both of them cherish beautiful dreams for the future. One day in the university, Sen meets her biggest nightmare in her life and the stubborn girl chooses suicide. When Qi is aware of the truth, she discloses the crime at the police station. However, the truth is not so simple...