Light Bleeding through walls...I think

Alright so I’m making this subway for a horror game and you start off outside and then eventually go inside into the subway where the spookiness happens. But after building lighting, checking the shadows on walls, making the lights dynamic except for the outdoor one, I’m completely confused. Any ideas??


The first one looks like light bleeding, which will require a higher resolution lightmap. The second needs you to have the walls meet at the corner rather than having a sliver of wall there from the end of the wall on the left.