Psychologist Lamar Rose's father is suffering from cancer and dementia, and wants his son to kill him and end his suffering. Lamar refuses, but his father keeps asking, and he relents. Then, from the pulpit of the church at his father's memorial, Lamar's sister accuses him of murder.When I Killed My Father is a page-turner with a conscience, about a man caught between what is compassionate and what is legal. It addresses heavy and provocative issues like mercy killing and family strife, but it's entertaining and moves with the pace of a thriller.