French choreographer Boris Charmatz makes full use of the hall of Brussels North Station and the Ancien Tri Postal, the old sorting office in Charleroi, according to one of dance’s essential elements: the duet. Around 1900, Arthur Schnitzler wrote the extraordinary text Reigen/La Ronde. The protocol of La Ronde, which functions on the basis of the entanglement of couples A/B, B/C, C/D, is interesting because it is not solely about the duet of the couple: through a chain of love, Schnitzler also examines the society of his time. In Boris Charmatz’ version of La Ronde, 16 dancers form a kind of implicit society: an intersectional and plural society, with male-female, male-male, female-female duets, of different ages and dance styles in all its forms and practices