Fun movie ... but it has 2 major plot holes

Rating: 7/10 (6 April 2020)

1) The blood on Marta's shoes could not have flown from across the room. If it did then there should have been blood stains all around the wall.
2) Ransom could not have killed Fran since according to the movie it takes a short time for the excess morphine to kill. Ransom was with Marta for at least 30 minutes before the 10 AM meeting time when they were by the burned building.