Dae-ho, an investigative journalist, seeks to track down the whereabouts of his son who was abducted three years ago. With the help of a detective and a psychiatrist friend, he will retrace his memory of the incident through the use of lucid dreaming techniques.

In an accident, Lin Muer dies, and Lin Mu Yu accidentally finds her registration form for a speech contest. She aspires to be as confident as her sister, so she decides to enter the contest.

Juno, an ordinary man, always feels insecure because he has a beautiful girlfriend, while Trish, a beautiful woman, is always played by men. They never expected to meet in a place full of wonders, a place that would determine their love lives, in a lucid dream.

Lucid Dreams is an episodic film which the director recounts four of his own dreams: Don wants to repay his debt by arranging a fake wedding; Fan, a white collar, learns to let go of his ego after struggling with love and work; a writer named Tong reunites with her long-lost mother; a driving instructor, Chung, is inspired by four 'ghost ladies' and starts to believe again in his musical talent.

Memory eats into his dream. With the disappearance of that batch of wood which comes from the Southwest border, Li Guang, who is at the age of knowing destiny, realizes that this bizarre and motley reality is only built of the extension of memories.

Back home after a break-up, a man finds himself in an empty room. The movements and actions he performs mark the time of his loneliness, and a few objects offer him temporary comfort, before a deep sleep seizes him. A lucid dream will initiate a healing process.

Alejandro will go through the different places where he spent his teenage years. He will reminisce with his mother, in laughter and tears, the experiences they both went through due to his drug abuse, looking at it from a new point of view, as an anecdote.