Wen Feng (by Chris Lee) is a violinist. After winning the International Youth Music Competition, he climbs up the Yalazhen for a big celebration. After drinking a lot, he participates in a game "Dare to kiss?". After returning to Beijing, he suddenly has a strange addiction longing for kisses, similar to drug addiction. Everything begins from the night in Yalazhen. Would it be the punishment he got from blaspheming against the god? Or is he infected by a new virus? Wen Feng decides to visit Tibet again to find the answer. Back to Tibet, he meets Duo La (by Zhuo Tan), a beautiful Tibetan girl he once had a passionate kiss with. He falls in love with this talented and beautiful cellist soon after they reunited. Wen Feng and Duo La feel seamlessly connected like they have known each other for a long time. They are like lovers with no distance. Therefore, they decide to find out the secret of the Kiss Addiction together. The mystery of kiss opens the door of memory. Every kiss brings in a new piece of memory, and the pieces come together as a story , a cycle of endless losing and searching of love. Dou La was Wen Feng's wife in his previous life, she was also a physicist who dedicated herself to the study of genetic memory. She believes memory is a substance that can be transmitted in distance. The memory of the previous life can be transferred through kissing. Can love last forever when consciousness can be passed on? When Wen Feng falls for Dou La in the now life, the passionate love puts Dou La, who craves for freedom, in a dilemma. She loves Wen Feng, but she loves freedom even more. To her, there are only three destinations - love, freedom, or death which puts everything to an end...