Collaborated by resident choreographers Anli Su and Mei Li, "Unknown" is about shared experience of individuals' life. The original music was created and performed by a Yang-qin musician Chin-ping Lin. As the dance unfolds fragments of choreographers' personal storied, audiences see humor, sadness and hope in their reflections upon life. With poetic atmosphere and eye-catching movement, "Unknown" owns the magical power of touching us all. It was premiered in the Experimental Theater of National Theater to a full house audience in 2005.