My Days of Mercy (2017)

Lucy and others demonstrate outside a prison about to execute a mentally disabled man for killing a cop. She meets Mercy, who is there with her mom and dad, a cop, to support the execution. Once home again with her big sister Martha and kid brother Ben, Lucy googles Mercy. She's a lawyer. Lucy's dad is to be executed in a few months for allegedly killing her mom 8 years ago, when Lucy was 14 and Ben a baby. Martha has been like a mom for them since. The siblings have a pro bono lawyer trying to get their dad off death row. The cute Mercy keeps meeting up with Lucy.