In 2012, the hotel and spa, previously owned by the Vals community, was sold to the investor Remo Stoffel for CHF 7.8 million.

[3] Stoffel turned the spa into a luxury resort and made its access exclusive to the clients of his next-door hotel.

[5] In 2017, Peter Zumthor complained that Stoffel was killing the social project of the Therme initially designed for the local community.

[6]: 200  Very characteristic for the movement in the building is constant change between the very small intimate spaces and the large meandering bath.

The story follows Pierre, who dropped out from architecture school and travels to Switzerland to visit the famous thermal baths buildings, designed by Swiss architect Peter Zumthor.

While there he becomes acquainted with the mysterious Monsieur Valeret, who is similarly obsessed with the thermal complex built deep inside a mountain.