: The song plays as Jim infiltrates a military mansion (the "House") to rescue Selena and Hannah. His brutal, frenzied violence against the soldiers causes Selena to briefly mistake him for one of the Infected.
: The title refers to a scene earlier in the film where the character Selena tells Jim she would kill him "in a heartbeat" if he were ever infected. : The song plays as Jim infiltrates a
The track's simple, driving melody and intense progression lend themselves perfectly to the metal genre. Several notable versions have gained millions of views: : The song plays as Jim infiltrates a