A well-off young woman decides to become a nun, joining a convent that rehabilitates female prisoners. Through their program, she meets a woman named Thérèse who refuses any help because she says she was innocent of the crime she was convicted for. After being released from prison, Thérèse murders the actual perpetrator of the crime and comes to seek sanctuary in the convent.
A plucky businesswoman agrees to receive love letters to a prefect’s wife from a young official, and soon finds herself embroiled in a scandal that inflames a town’s class tensions.
Denise, a young employee of the mine, is courted by the engineer Risay while she is engaged to Daniel, a simple underground worker. A betrayal has occurred that compromises the mine. An accident occurs and about fifteen workers, including Denise's fiancé, are buried under rubble in a collapsing shaft.
In his prison cell, the composer Remi Bonvent composed an opera, The columns bed. The director of the prison, Porey Cave, succeeds made believe he is the author of this work. The death of the two protagonists will prevent the discovery of the truth.
