Perfect Family S01E03 - Su-yeon’s Disappearance

Sun-hui is shocked that her cell phone and workbook are back in her room. Just then, Su-yeon comes over, demanding Sun-hui to turn herself in, and as soon as Sun-hui refuses her offer, she goes missing. Meanwhile, police officers questioned Kyeong-ho's friends from school and found out that stab wounds were the possible cause of Kyeong-ho's death.