You should use blend modes. Create a Mask sprite - a black circle on a transparent background, you can make it with soft blurred edges if you want. Put the ceiling tilemap and the mask on a separate layer, set Force Own Texture=On on this layer. Set "Destination out" blend mode on the mask sprite. You can pin the mask sprite to your character.
If you select File-New in Construct, there is an example project demonstrating different blend modes.
I did it, thanks dop2000, I was using BLEND but I was with the sprite mask was with the transparency upside down so that's why I did not leave, now if it's ok ... thanks