A 49-year-old woman of unremarkable past health was found comatose in her car. Blood pressure was 130/70 mmHg, pulse 80 beats per minute. There was no circumstantial evidence of drug overdose. Urine toxicology tested negative. Electrocardiography (ECG) showed anterolateral ST-segment elevation (Fig. A). Head computed tomography (CT) of demonstrated no intracranial pathology. Non-sustained ventricular tachycardia developed shortly. Echocardiography revealed left ventricular dysfunction with akinesia of mid-ventricular walls but sparing basal and apical segments (Fig. B, video).