Athens, Greece. A heatwave. Stephanos is working out listening to rap, while his mother is planning a day out. After another fight between them, he is left alone to take care of his two younger siblings and Lucy, their family dog. Lucy is sick. Summery laziness among pizza boxes, adolescent flirt and a phone that stays unanswered. What will dramatically change their day is Lucy's death. Yet, more changes are in store for the three siblings and they will be revealed to them when Stephanos picks up the phone. It was the last care-free day of their lives.