“My name is Catherine. I'm 35 years old. I own an apartment in Paris, and I have a well-paid job. I also have a 5 year old son, William, and a golden nanny, Claire. I have everything it takes to be happy. And yet…”<br/>Being constantly checked by a psychologist, she tries to have a normal life amidst the moments when she loses ground between alcohol, depravity and blackouts. Being the sole witness to a murder in the convenience store where she usually does her grocery shopping, her already not so peaceful little life will be turned upside down in just one week.<br/>