- The serum -

A serum developped in a top secret laboratory has been stolen, a serum which makes a person insensitive to pain!... Larissa has been instructed to recover the serum but unfortunately when she catches up with the thief, it is too late: he has already injected himself with the serum and is invulnerable! Ah, but Larissa is going to deal him such a series of blows that not even Superman could withstand!