The Blood Pack is an item in Silent Hill. It is used to distract the Bloodsucker that prevents Harry Mason from getting the Plate of Hatter. It can be found on a shelf in the storage room in the alternate Alchemilla Hospital, 3F.
Silent Hill 3
The Plastic bag (with blood) appears in Silent Hill 3. The plastic bag is received in the otherworldly Brookhaven Hospital and found in the trash bin of the 2F women's locker room. Heather Mason fills the bag with the dripping blood of a man hanged by his feet, who has a bucket placed below him, located in examination room 4 in 3F. The purpose of this item is to be used on an altar in Room C4 on the first floor in order to find Leonard Wolf.