For week 14, the Bears traveled to St. Louis, Missouri to play the St. Louis Rams. Prior to the game, a quarterback controversy arose between Rex Grossman and Brian Griese regarding the Bears' starting quarterback position. Grossman, who finished the preceding game with a quarterback rating of 1.3, was eager to make a statement, and rebound against the same team which injured him during the previous year's preseason. Grossman rose to the occasion, and spearheaded the Bears to a 42-27 victory over the Rams, while rookie CB Devin Hester had a record-breaking performance. Also, many spectators of the Monday night game may remember Senator Barack Obama's humorous television introduction before kickoff. During the course of the game, Hester broke the NFL record for combined return touchdowns in a single season with six. He also became the sixth player in NFL history to return two kicks for touchdowns in a single game. For his performance, he earned the NFC Special Teams Player of the Week Award. On a low note, kicker Robbie Gould uncharacteristically missed two field goal attempts, and the Bears announced that defensive tackle Tommie Harris would miss the remainder of the season with a severe hamstring injury.
Question: How many points did the Bears win the game against the Rams by?
Answer: 15