Five old friends decide to move in together as an alternative to living in a retirement home. Joining them is an ethnology student whose thesis is on the aging population.

Chloé Saint-Laurent is a profiler and works with a police team to solve murders in Paris. She's very sweet, she wears very colored clothes and a huge yellow bag. She looks like a little girl who need a doll, but she's very smart and a very good profiler. Step by step, she fit in the team and her colleagues, very reserved at first, became her best friends.

Remy, a 6-and-a-half-year old boy, is playing with his grandfather also named Remy. One can say that they are very noisy! But the trouble that worries the mum seems more serious than a mashed potatoes battle.

Professor Choron recounts with his memories as a child of a barrier guard, the 2nd World War with its horrors and the trains he saw during those years leaving for Germany or coming from there, full of French or German soldiers, in conquest or in rout according to the period