Every Saturday, Bertrand and his daughter Claire visit the grave of Nathalie, their wife and mother taken away by cancer. One day, their ritual is upset when a man tries to kidnap Claire. Bertrand intervenes to save her, but is killed by the kidnapper.
Three years later, Gustavo, a family man, is arrested and charged with the murder. His wife Sophie mobilizes her network and throws all her energy into proving his innocence. But when Gustavo is accused of murder on social media and the public sees in him a perfect suspect, the situation gets out of control.