Creating history is quite the drug, and Como were high on the idea of reaching the first Coppa Italia final in the club’s history, as the men from the lake dominated the first half.
Marc-Oliver Kempf rattled the post with a header from a corner that was won when Inter goalkeeper Josep Martinez denied Martin Baturina from a tight angle, but on the half-hour, revenge would be served by the Como player.
A driving run from Ignace van der Brempt saw the Belgian get to the byline, and his pullback found Baturina in space eight yards out; the Croatian hammered his team in front.
It was a goal that blew the tie wide open, and there were chances aplenty in the remainder of the first half, as Tasos Douvikas flashed his header just wide when he latched onto the end of a devilishly-delivered corner.
Inter had their best chance shortly afterwards, as Marcus Thuram headed towards the net but Maximo Perrone hacked it off the line.
Como’s rise has been meteoric in recent years, with them playing Serie C football six years ago, and just two minutes into the second half, they put themselves on the verge of the cup final. A lazy pass from Piotr Zielinski gifted possession to Nico Paz, and the Lariani's golden boy released Lucas Da Cunha, who slotted home from a tight angle.
Inter were frantic in their search for a lifeline, and duly got one with just over 20 minutes remaining, as Hakan Calhanoglu’s long-range deflected effort flew into the bottom corner of the net.
Como substitute Assane Diao should have sealed the tie just a minute after Inter’s goal but squandered an excellent one-on-one chance, which would prove to be a costly error.
Çalhanoglu bagged his second of the game to bring the tie level with a precise header from 12 yards out, before Petar Sucic’s curling shot in the 89th minute sealed both a remarkable comeback and the Nerazzurri’s place in Rome, where they will face either Atalanta or Lazio.