Love can be bitter, sweet, or spicy. The film revolves around three couples from Beijing, Hangzhou and Chongqing.

Based on the novel of the same name by Cixin Liu, the first in the Remembrance of Earth’s Past trilogy. Hundreds of physicists died mysteriously. A Chinese nanomaterials expert, Wang Miao, sees a mysterious countdown in his eyes. Soon he finds out that the "disastrous planet" under three suns in a game really exists. The three-body civilization there will reach the Earth in 400 years. A future catastrophe is coming for humanity...