{Book 1 of The Case Files of Seo Yo-han} Rachael Patton-Langdale is murdered on an ocean liner. Her niece Ophelia "Phil" Patton was heard shouting "I wish you were dead!" earlier. Detective Seo Yo-han has only two days to solve the case before the ship reaches its destination and Phil - innocent or guilty - is taken to prison. Adding to the confusion, Phil lied about her alibi. And a letter is found in Rachael's room signed by Heather Glenn, who isn't on the ship and who no one has heard of.