Fiorentina blew a two-goal lead for the second game in a row, as Torino missed a penalty but still grabbed a point at the Franchi.
The Viola led through goals from Riccardo Saponara and Nikola Kalinic, but Andrea Belotti’s second half double piled the pressure on Paulo Sousa.
To make matters worse, the Italian international even missed a penalty, his third of the season, enraging the Florentine fans after Thursday's Europa League collapse against Borussia Monchengladbach.
Sousa was forced into a late change, as Josip Ilicic was injured in the warm-up, so Cristian Tello replaced the Spaniard in the starting XI.
There were noticeable gaps in the Artemio Franchi crowd, as the Florentine faithful made clear their dissatisfaction with recent results.
It was a frantic opening five minutes, with Fiorentina scrambling to clear a corner in the box and Hart getting down to save at the feet of Kalinic.
The Englishman saved superbly from Borja Valero moments later, but could do nothing as Saponara turned in the rebound on his first Viola start.
Arlind Ajeti almost handed the home side a second on a platter, missing his clearance to send Kalinic one-on-one with Hart.
The Croatian could only fire at the goalkeeper’s legs, however, and Carlos Sanchez headed over from the resulting corner.
Hart was keeping his side in the game, saving brilliantly from Tello before Kalinic skied the rebound.
Saponara saw a half-volley fly just wide of the post, having been teed-up by Kalinic.
The Croatian got himself on the scoresheet on 38 minutes, and this time there was nothing Hart could do to deny him.
Borja Valero swung in a corner, and Kalinic was completely unmarked as he headed home from just outside the six yard box.
Mihajlovic reacted to Ajeti’s dimsal first-half display, sending on Luca Rossettini at half-time.
Saponara came close to his second of the night just after the restart, but dragged his shot wide of the far post after cleverly working space.
The Viola had been completely dominant, but Carlos Salcedo offered them a lifeline just after the hour mark.
The full-back inexplicably dived in on Lucas Boye, sending the Torino man sprawling to the turf for a penalty.
However, the Granata have a woeful record from the spot this season and Andrea Belotti’s effort struck the top of the bar before going over. It was the striker’s third miss from the spot this term.
The Italian international made up for it soon after, thought Fiorentina had only themselves to blame.
Davide Zappacosta’s corner wasn’t cleared properly, and when Emiliano Moratti volleyed back across, Belotti was unmarked in the six yard box for the simplest of headers.
Fiorentina appealed for a penalty of their own, but Piero Giacomelli waved away Kalinic’s complaints after a tackle from Moretti.
Following Thursday night’s Europa League collapse, the Artemio Franchi crowd were getting increasingly nervous, and their fears proved to be well founded.
Daniele Baselli dinked a cross to the back post, and Belotti was on hand to slot the ball low past Ciprian Tatarusanu, to howls of rage from the home fans.
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