Vengeful Heart (Vietnamese: Quả Tim Máu) is a thriller film directed by Vietnamese-American director Victor Vu.

Starring actress Nha Phuong, actor Thai Hoa, Quy Binh, Hoang Bach, Tu Vi, Kim Xuan, Nancy Nguyen and Van Tung.

After the transplant, Linh keeps encountering unexplainable incidents and dreaming about a strange house located in the countryside of Da Lat.

Finally, after being heavily haunted, Son can't take it anymore and confesses that he caused the accident that killed Phuong in the middle of the street, however, he was in a rush to the hospital.

Thinking everything is coming to an end, things are getting weirder as Son claims that when he drove away, Phuong was still alive and wasn't injured, she was just unconscious.

Later, Linh and Cu Hu find a funeral table with the picture of Hong - who is allegedly Tam's business partner.

Right after knowing that Hong is missing, Cu Hu drives Linh to the flower farm where Tam is working a night shift.

Linh has intuition so she insists Tam to drive her back to the abandoned house on Ma Ta Hill, which turns out Phuong is still alive and has been locked inside for months.