A case of Prinzmetal’s angina pectoris (variant angina pectoris) is reported. The presentation provided two somewhat unusual elements in that relief of pain was sometimes obtained by jogging and elevated ST segment alternans occurred on the exercise test. However, there were many aspects of the case which were classical, and these are described. Because of the high incidence of myocardial infarction and the presence of a single obstructive lesion amenable to surgery attributed to this form of angina pectoris, coronary angiography was performed and revealed just such a lesion. The patient was subjected to saphenous vein bypass with subsequent relief of pain. Some notes on the rationale for the surgical approach and therapy are presented.