The In-Laws in Bloomington, MN

An elderly woman dies at the bottom of a stairway, and Betty is accused as her killer. Convinced that his sister isn't capable of such a crime, psychiatrist Seth enlists his friend Ann Lee, an amateur detective, and her partner to help clear her name.
Never in their decadelong career have Ann and Fang Chen had to defend a client who already has airtight evidence and an eyewitness against her. As they try to separate the assumptions from the truth, every lead appears to be a dead end, and Betty Foreman seems to be guilty as accused. As the trial day looms, they are under tremendous pressure to prove their mettle and save an innocent friend.
When the curtain finally comes down, however, nothing is what it seems, and the one who wins the battle could lose the war.