This is episode 11 of 35 of The red button. Play it below, then continue straight into the next episode — the whole season is free and needs no account.
Opening of the season — the setup and the first turn.
Elevator technician Lena finds recordings of Emily's stalking by supervisor Richard. Official help fails, so Lena hacks elevator audio to torment Richard into confessing. After his arrest and her dismissal, Lena launches a women's safety nonprofit, installing citywide emergency recording systems.