Did I compeletely missunderstand this!?

The official synopsis:

A man lives, writes and loves in the dark. Fourteen years ago he suffered a brutal car accident in the island of Lanzarote (Canary Islands, Spain). In the accident, not only he lost his sight, but also lost the woman of his life, Lena.

This man uses two names Harry Caine, playful pseudonym under which he signs his literary works, stories and scripts, and Mateo Blanco, his real name, under which he lives and he signs the films directed by him. After the accident, Mateo Blanco is reduced to his pseudonym, Harry Caine.

He cannot direct movies; he is suffering from the burden of losing his lover, and he likes to think that he also died in that horrible accident.

So Harry Caine basically lives thanks to the scripts he writes and because of the help of his old and faithful Prodution Director, Judit García; and Diego, son of Judit, a typist and secretary. Diego is also Mateo's guide, as he is completely blind.

Ever since he decided to live in order to tell stories, Harry became an active and attractive blind man who has strengthened his other senses to enjoy his life, with high dosages of irony and a self-inducted amnesia. He has completely erased the first identity of his biography, Mateo Blanco.

One night Diego has an accident and Harry looks after him (his mother, Judit, is out of Madrid, and they decide not to tell her about the accident in order to not alarm her). During the first nights of convalescence, Diego asks Harry to tell him about the time at which he responded to the name of Mateo Blanco. Harry is taken aback at first, but he finally accepts to tell Diego about the incidents that took place fourteen years ago, in order to entertain the boy. He begins to tell him the tale, like a father would do for his little child to fall asleep.

The tale of Judit, Lena, Mateo and Ernesto Martel is an amour fou story, dominated by the fatality, the jealousy, the abuse authority, the treason and the guilty complex. An exciting and terrible story; its more expressive image is the single photo of two lovers embraced, torn up into a thousand pieces.