Voir Sadisflix. A light grey room. A slender woman of 50 and a 12 year old boy. Joined together like the links of a chain. Changing positions at a constant rate. One flowing movement. Never losing touch with each other. A game played by a mother and her child. A kind of tango. Sound of feet. Breathing. Faint smiles. Until suddenly the woman's hands let go of each other.