The Ontario Court of Appeal in CM Callow Inc. v Zollinger, 2018 ONCA 896 (“Callow”) recently rendered a decision that could have important consequences for parties seeking to terminate commercial agreements. Specifically, Callow may have significant ramifications for the law of good faith in Ontario, and in particular with respect to the duty of honest performance first recognized in Bhasin v Hrynew, 2014 SCC 71.