Left ventricular pseudoaneurysm is usually associated with myocardial infarction and ventricular wall rupture, although it can also be associated with other pathological conditions. Rupture causes shock, and death if not repaired urgently. We report the very rare case of a man with coronary lesions that resulted in a silent myocardial infarction with rupture of the myocardial wall and the subsequent development of a large, posterolateral, left ventricular pseudoaneurysm. This was followed by rupture of the primary pseudoaneurysm and the consequent creation of a second pseudoaneurysm, which finally resulted in shock and death.