[3] Hossein Eidizadeh wrote for Kinoscope that "Virtually the entire film happens in Roman’s apartment.
For most of the film, we see him cycling madly on an exercise bike; we see the expansion and contraction of his muscles, as if we are following the routines of a laboratory rat under examination.
You get so close to Roman and his obsession that, by the end of the film, you are out of breath, as if having cycled for two hours.
Sedlák’s first film is visually compelling; he creates an ominous atmosphere in which the only sound heard is Roman’s breathing, his cycle, and the oxygen machine.
Šarlota (Tereza Hofová), Roman’s wife, longs for a baby and the presence of the oxygen tent adds another level to this already horrifying story of alienation and makes way for the hard-to-forget ending of this domestic thriller.