If it’s the classic Watchmen comic, there’s not a lot wrong with it aside from the unnecessary pirate interludes and a few parts of the ending sequence (not spoiling anything).

The deceased Comedian is supposed to be seen as a horrible guy and that’s portrayed well. There’s a lot of political intrigue and philosophy that desires provoking thoughts as well, so it’s more of a mature read rather than pure shock value like a lot of fiction media nonsense these days.