When Anna, Lizzie Thorne's charismatic sister, is killed in a tragic accident, her family is plunged into shock and despair. One year on and grief still has a suffocating hold on them. Lizzie's mother, Kate, consumed by loss, retreats from her family locking herself away to paint Anna's portrait for hours on end. Jon, her father, is doing his best to care for his loved ones but the pressure of trying to stop his marriage collapsing is pushing him to breaking point. Amid her parents' turmoil, Lizzie just wants to grow up and leave her sister's ghost in the past.