April 17, 1981, Game 7 of the Western Conference Semifinals, Houston Rockets at San Antonio Spurs highlights focusing mostly on Calvin Murphy.
partial box score: http://www.basketball-reference.com/b...

Shortest NBA player in the Hall of Fame, Rockets' legend Calvin Murphy at 33 yeards old, in the final year of his prime with one of the greatest game 7 performances ever (still top10 in most individual points scored in a game7). At that point, Murph was the 6th man but he started on this one, and with his teammates really underperforming on offense, he almost single-handedly kept/brought them into the game and never stop pouring it in, nobody and no strategy was checking him, given his passing ability also. Apart from his offensive output, he was also hustling all out while playing good defense.
Houston reached the Finals, led by Moses Malone (who tied Calvin's 42 further on) and with Murphy as a critical factor, so when he got injured later on in that post-season, it really slimmed their chances, and they ended up losing against the Celtics.

Highlights also including Moses Malone, George Gervin, Robert Reid, Paul Griffin, Reggie Johnson, Tom Henderson and Dave Corzine.