At full moon, couples therapist Ashley Cosway (32) is found at home by her husband, who ignores who the second portion Chinese was for, shot and marked in bad English 'psycho, you're time is up, rapist'. In the park near his home, retired math teacher Frank Anderson is also found shot. Ashley's visitor was friend-lawyer Brandy Rossi, asked to explain how one gets a restraining order. She and husband have an alibi, so Castle looks into her patients and a rumor of marital trouble. His hurry because of a bet against Javier and Ryan which duo solves its crime first, despite abundant alibis, gets twisted when forensics indicate a mysterious link.