Nine-year-old Lucie reunites with her mother Caro to spend the summer holidays in Bectoile. Too busy with archaeological excavations, Caro does not have much time to spend with Lucie. However, the little girl has many questions about her family's past and intends to take advantage of her visit to the village where her mother grew up to discover its history. Luckily, she will have the help of her new friend Yann, but also, and above all, of some mysterious great tit birds that seem determined to guide her in her search.

One of the first French feature films made using cut-out animation, a meticulous, artisanal technique based on paper cut-outs animated frame by frame.