Karlsruhe's survival hopes suffered a hammer blow tonight as they let slip at 2-0 lead to lose at home to Hannover.
Edmund Becker's team had looked on course for a rare and much-needed home win when Alexander Iashvili and Lars Stindl both netted inside the opening 32 minutes.
It was an advantage they would forfeit before they could even reach half-time.
The goals came in the space of three minutes with Sergio Pinto's 42nd-minute strike swiftly followed by Mikael Forssell's leveller.
And when Forsell turned provider for Hanno Balitsch to score after 64 minutes Hannover's remarkable comeback was complete.
Karlsruhe's defeat leaves them languishing at the foot of the Bundesliga table and four points from safety - a gap that could be widened tomorrow when the four clubs directly above them are due to play.
It had looked so much better for Becker and his side in the initial stages as they opened up a two-goal lead that had seemingly set them on their way to a first home win in seven games.
Iashvili's opener after 11 minutes was delivered with a low left-footed drive from outside the area after Andreas Gorlitz had picked him out with a cross.
Karlsruhe then got their second just after the half-hour when Christian Eichner's cross picked out Stindl to score from 10 yards.
Hannover could have been forgiven for wanting the break to come early, instead they rallied to go in on level terms.
Their first was gifted to them when Karlsruhe goalkeeper Markus Miller made a hash of trying to save Pinto's 30-yard effort. The stopper let the ball squeeze through his hands before also letting it go through his legs and over the line.
Forssell then levelled matters on the stroke of half-time when he was left unattended six yards from goal to turn in Jacek Krzynowek cross.
Karlsruhe were not without their chances to go ahead after the break, Sebastian Freis shot high over the crossbar from 10 yards, before Forssell's threaded ball found Balitsch to scored his winner from 11 yards.
Hannover could have even had a fourth in injury time when Arnold Bruggink's free-kick flew narrowly wide of the right-hand post, but for Karlsruhe the damage was already done.