After a long day at work, fiftyeight-year-old Khadija falls asleep on the last subway train. When she wakes up at the end of the line, she has no choice but to make her way home on foot. On her nocturnal journey she finds herself compelled to ask for and give help to the other inhabitants of the night.
Nilou, Malick and Adanne are best friends and seem to share everything, yet they have more faith in their smartphone - the carrier of all their personal information - than in their friendship. When they discover that their phones have been hacked, nothing seems certain. They want to do everything they can to keep their secrets from being publicized, but with a hacker lurking, sending them challenging assignments in exchange for their privacy, the three friends are confronted with their darkest fears and secrets.
Axelle, a young, promising tennis player is left in increasing desperation when she learns that Jeremy, her attentive coach, remains detained for further questioning.
