Loving girlfriend, family fortune, breakout movie role: he's got it all. Until an app awakens a powerful new yearning. While in Rome to shoot his first movie, actor and industrial heir Niccolò becomes obsessed with the dating app "US" that sends him into a self-destructive spiral.

The morning Stella decides to take her own life, a stranger knocks at her door claiming the guest room he booked for the night. Surprised but charmed by this man who seems to know her very well, Stella decides to let him in. But when Sandro, the man who broke Stella's heart, joins them at home, this odd situation turns immediately into chaos.