The officiating in this game was a joke. The Senators cannot beat a team as talented as the Penguins while they are allowed to commit infractions with impunity and their opponents are called for marginal violations. Choosing to enforce the rules equally only when the game is out of reach for one side is a disservice to the integrity of the game.
And that's all you need to know about this one. The rest you can infer from the shot chart and highlights.