Well i have to say it does feel like desperate housewives to me just with different characters. So she not a maid but her son was the one who got sent to jail for stabbing that maid . I did find it interesting how quickly she became friendly with the other maids but asking about murdered maid was a red flag.
Do they have cast these maid as horny women surely one of them actually can be good maid without all the antics. The mother giving her daughter a maid uniform but loved the way she customise it for her assets.