José Luis, Manuel, Sergio y Martín are people with special needs who are rehearsing during several weeks for a percussion concert. 

Isabel is an old lady who tries to fix her memory through singing and dancing traditional songs with the help of some experts and friends. 

Cristina is a teenager diagnosed with developmental delay. Music therapy is helping her express her feelings and improve her language significantly. 

Manuel is at a palliative care hospital, spending his last days playing and singing music with his relatives. 

Rosa has a degenerative neurological condition and has to re-learn how to walk, how to remember and how to smile. 

Music will be the key.