What are the rules and objectives of the mafia game with cards?

In the Mafia card game, players are assigned roles as either Mafia members or innocent townspeople. The Mafia's objective is to eliminate all the townspeople, while the townspeople aim to identify and eliminate the Mafia members. Players take turns accusing and defending each other, trying to figure out who is lying and who is telling the truth. The game ends when one side achieves its objective.