How quickly can things go bad? Here are some dates in 1933 from Wikipedia's Early Timeline of Nazism: https://en.wikipedia.org/wiki/Early_timeline_of_Nazism#Nazi_Revolution
30 January: President Hindenburg appoints Hitler chancellor
1 February: Dissolution of the Reichstag
27 February: Reichstag fire
28 February: Hitler awarded emergency powers, civil liberties suspended
22 March: Dachau opens
24 March: Enabling Act
That's less than 2 months altogether, from political maneuver to concentration camps and suspending the constitution.