Yuki, a strict and dedicated department head, is assigned to oversee a factory inspection with her subordinate, Yoshino, in a rural area. This one-week business trip means leaving her husband behind. While commuting to the factory from her lodging, she finds herself crammed into a train just like the rush hour in the city. During this commute, Yuki becomes a victim of sexual harassment. She tries to call out for help from Yoshino, but he's nowhere to be found when she needs him most. The harasser then appears every day, targeting Yuki with increasing boldness, escalating his actions. Little does she know, he's also a coworker and familiar face among the factory workers...
