Elena and Lucas are a happy couple with their son Hugo. Elena has a very coherent imaginary world where she goes to feel safe and meet two friends: Leslie and an old ludicrous and crazy man. She only shares this secret with her husband. One day, Elena is sent to a psychiatrist who tells her that the latter revealed the existence of her world. It puts her in a delicate situation for the custody of Hugo in the divorce Lucas has started. Her life is shattered: the more she talks about her world, the more frightening it gets. She starts suspecting everyone and sinks into paranoia. At the same time, Hugo who is concerned about his mother gets closer to Lucas. Trying to find a solution at all costs, what will she be willing to do to save her imaginary world and get the custody of her son?