Watch Killer Grades (2021) HD Full Movie Free on solarmovie.do. Watch Killer Grades (2021) online free. Proud mom Katherine has just found out that her daughter Michelle has earned a spot on the academic ...Proud mom Katherine has just found out that her daughter Michelle has earned a spot on the academic decathlon team. But, when a student winds up in the hospital, she starts to wonder if there's more going on with the team than she knows.