Butcher's Bill

 is a quest in Fallout 4.

Detailed walkthrough

 * 1) On completion of Boston After Dark Carrignton mentions concerns about the status of a couple of safehouses.  The Railroad was struck simultaneously at many of their locations when The Switchboard fell.
 * 2) Head to the dead drop, it's location is near to the church used in the previous mission.  Take the holotape from the container and play it.
 * 3) Head to Kendall Hospital and make your way inside, exploring the safehouse while keeping watch for traps and raiders until the elevator is reached.
 * 4) After the elevator follow the path until you reach the large, open room.  The quest marker is a floor down, avoid or kill the raiders, then listen to the report.
 * 5) Drop down to the bottom floor, defend yourself, flip the circuit breaker in the southwest corner, then head out.
 * 6) Return to HQ and turn in the quest.

Bugs

 * The dead drop may not appear at the noted location. This may be circumvented with the following console commands:
 * Add the note found in the dead drop:
 * Set the current objective as complete:
 * Advance the quest to the next objective: