the zombie apocalypse started few days ago and all the people in the town turned into zombies few people survived, but failed... Your family turned into zombies and you're the only one who survived

Next day, you went to the abandoned building quietly not to get caught by zombies, after you entered... You went to the laboratory

You see tons of weapons and food... As you hear weird sounds, you look around there's a zombie with mask on but he got chained up holding him down