After the parents of Erica Falck, a successful author, are killed in a car accident, a man turns up at her house claiming they have the same mother. Erica refuses to believe him. Soon after he is found murdered; prompting her to investigate her mother’s past.
Danielle is a 47 year old Parisian that has been admitted to a private clinic after her third suicide attempt. There she has taken a vow of inviolable silence but is persuaded by a woman psychiatrist to open up. Soon Danielle finds the words to explain the reasons behind her state of unease.
Following a 10-year-old kid who arrives at the Ethiopian capital after escaping from his home and his misfortunes to integrate into a street children group, The Hidden Smile constructs a realistic tale on the values that flourish in a society formed by children.