I don't think I have ever seen a team +1.5 at -110. It almost makes sense though:
Boston activity in the last 2 months (25 games)
Losses (5)
Wins by 1 (6)
Wins by 2+ (14)
They have beaten Winnipeg by 2 and lost to them by 1.
Even money that they win by 2 or more is justified by these results, but can they do it again?
My money is on Winnipeg +1.5.