It's always amusing in these drama's when the schemers assume that because there's no hard evidence they can keep the crocodile tears and pleas of innocence and they'll be believed and if there's no evidence they can't be arrested so they're untouchable. Never get tired of them realising that the law is not the only way to get justice, and is actually usually the least effective because it relies on other people doing their jobs properly and not taking bribes and believing the tears and pleas.