Progression
The ii–V–i (minor) in C minor
ii–V–i (minor) in C minor plays Dm7b5, G7 and Cm — iiø, V and i — across 3 chords. The minor-key version of jazz's core cadence: a half-diminished ii, a dominant V that borrows the raised seventh, and a minor tonic.
The chords, in order
1Dm7b5iiø
2G7V
3Cmi