Comments for 人でなし

I am a bit confused on how this word can be used in a sentence if anyone could help me with it.

I saw this word on the title of anime that was recommended to me and I was mostly able to understand its meaning apart from this word.

The sentence is: 

Watashi wo tabetai, hitodenashi. 

私をたべたい人でなし

I roughly stood it to be, I want to eat -something -

so I tossed into google translate to see how close I´ve gotten and got the result "I want to eat myself" , but then upon looking at the dictionary definition of the word it didn´t seem to make sense.

Can somebody help? 

There is a couple of grammar points to consider:

First, consider the following sentences

私はリンゴを食べたい。
I want to eat an apple

The subject (私) is indicated by the particle は.
The direct object (リンゴ) is indicated by the particle を.

So the first part of the sentence is actually

私をたべたい
wants to eat me

人でなし from the definition above means a monster or inhuman person.
The たい form of a verb basically acts as an i-adjective, you can just put it before a noun to modify the meaning of the noun.

So when we connect them together, we get

私をたべたい人でなし
The monster who wants to eat me