After the mysterious death of his colleague, a scientist discovers one of their test subject is awake to exact revenge on those involved in making him an undead

(which wasn’t their objective)
so,
the patient–terminally ill from leukemia–volunteered for a possible cure
it didn’t work
(an unimportant detail:
Ice fish genetic engineering, for being able to survive without haemoglobin)

now the scientist must warn his colleagues, without having an idea, that one of them is the antagonist

backstory: the test subject was responsible for the accidental death of antagonist’s loved one
after which (event) he decided to give him “a never ending pain”
The undead is in a state of “eternal pain”
and unable to kill himself
(another unimportant detail:
because of the hydra genetics, engineered by our antagonist…whenever the undead decides to kill himself–for instance from a fall of a 10 storey building–he splits into three and his pain triples! – unless he reattaches himself)

“What are the undead strengths? what is he capable of doing?” will determine the initial conflict

The undead’s goal is to kill the research team
His dramatic need is to die peacefully

The bad scientist’s goal is to make the subject suffer
His dramatic need is to accept the reality

The good scientist’s goal is to save himself and his innocent colleagues
I am stuck at his dramatic need, maybe that’ll surface later when i begin to write..