Paris 1900. Sharing a house in the Bohemian District are Roberto, a fledgling Musician, who is composing an Opera with his friend the poet Victor Duval; and the beautiful Cossette, daughter of a retired tenor, who goes up and down the stairs, taking advantage of Roberto's music to train her voice. The young bohemian musician does not know Cosette, but hears her sing daily. Instead, she's in love with Roberto and follows his steps as a composer.

Marcello is engaged to Gina, the daughter of the boarding house where he lives, but he is undecided whether to marry her or not.

1961 film directed by Clemente Pamplona

1945 film by Florián Rey

1969 film by Rafael Gil

Juan, un seductor de mucho cuidado que siempre va de flor en flor, un día se ve obligado a aceptar una apuesta con sus amigos. Esta consiste en seducir a Mariana, la vecinita del piso de abajo. Una joven con un concepto del amor completamente opuesto al de Juan, pues le gusta la vida sin alborotos, ni excesos, ni bailes modernos... Pero Mariana, se entera de sus intenciones y se propone hacerle fracasar

1956 film by José María Elorrieta

1958 film

1952 film directed by Antonio Lara de Gavilán

1955 film by Julio Bracho

1961 film directed by Pedro Lazaga

A group of tourists arrive to see the botanical gardens on a small island off the Italian coast. The only inhabitants of the island are the famous botanist Baron von Weser and his two faithful servants; all of the other residents fled after a series of mysterious deaths. When the car driven by the tourists' guide hits one of the baron's servants, von Weser explains that the death was due to a rare and incurable disease, not the accident. That night, the guide and Cora Robinson, one of the guests, are found murdered with all the blood drained from their bodies.