Whilst riding his scooter at night, 15 year-old Simon Tambarini is hit head-on by a car. Four years pass - His parents and his brother Vincent attend the wedding of Sandra and William. During the reception Alice arrives, Sandra's sister and Vincent's ex-fiancée, who had left the region several years earlier. An unexpected return that delights the bride, but not everyone is so pleased to see her. Shortly afterwards, as William is looking for his new wife, Alice spots her sister's body lying at the bottom of a cliff. As suicide is rapidly excluded a suspect begins to stand out, Anthony Pasquali, employed in the restaurant run by Claire, Alice and Sandra's mother. Vincent heads the investigation.
—Happy_Evil_Dude