TRUM-015 - My stepson caught my new wife's secret

The story is about a woman whose past as an AV actress is discovered by her stepson, who then blackmails her. There are only two sex scenes: one with her husband and one where she's forced into rape, which is too few. In the rape scene, the son's friend suddenly appears as the rapist, and the son acts as the cameraman—it's a bizarre setup. The film ends abruptly right when the husband comes home in the middle of the rape, leaving us wondering if he'll catch them in the act... it feels very half-baked.