Mate considers turning himself into the police, but Meimei holds him back.  Vegas retrieves the recovered CCTV files from the repair shop.  Kuaitiao introduces Yi to Sukrit's sketchbooks as a way to uncover their family's hidden past.  

Yi, with the help of Toei, Vegas, and Kuaitiao finds the missing red sketch book and uncovers a buried family secret that seems to be connected to Prasoet's murder.