Watch Chasing Life for Free: How to Stream the Movie Online at 123Movies. . Chasing Life (Pulsação Zero) is an action/comedy about 25 year old lovable loser Alex who, when his life hits rock bottom and decides to end it all, shares his dogs euthanasia poison just moments before a dramatic turn of events sends him hilariously and desperately seeking the antidote which he must find within 4 hours or die.