Baby Hook was Game 4. Celtics won Game 3 of that series.
Yes, Game 4 in 1987. Lost by one to the Lakers. Still the toughest loss to me. Game was in Boston and would have tied the series 2-2.
From Wikipedia:
"What followed was another play for the ages. Magic set a pick on Kevin McHale, which almost opened up a lay-up for Worthy, but Dennis Johnson was able to switch over in time on help defense. However, that left McHale scrambling to guard Magic who just got open and received the inbounds pass near the left sideline. Twenty feet from the basket, Magic had the advantage on the post-defender McHale. Magic dribbled, hesitated to get McHale off-balance, then drove into the key. Magic then lofted a hook shot, which just cleared the fingertips of both McHale and Parish, and swished through the net giving the Lakers a 107-106 lead with only 2 seconds left.
The Celtics still had one last shot, Dennis inbounded the ball to Bird, who had broke to the corner of the basket after faking out Worthy by walking him up the court. Larry, to his surprise, found himself wide open behind the 3-point line right in front of the Lakers' bench. Bird caught the in bounds pass from Johnson, turned, and put up a fall-away jumper as time expired. The shot was off the mark, and the Boston crowd let out a collective groan as the Lakers' bench danced off the court to celebrate the hard-fought victory, which gave the Lakers a commanding 3-1 series lead."