Ella & Vlad at the end

A super-virus contaminating blood sources concerns Ella, a werewolf by day, to contemplate a blood transfusion to be normalized, surviving into one more century, as a vegan.

Vladimir, an eagle sized vampire bat by night, has shared life together for over 800 years; however never able to take solace within each others' arms. Having watched and taken part in the rise and fall of countries now sees humankind nearing extinction.

Adding to their issues an unknown female has been in search of Vladimir as long as they've all been alive.