Black dress with white collar from Alice in the Eve (via General Pants).
Wednesday Addams style dress.
Hidden buttons all the way down.
100% rayon crepe fabric.
Note: the hem is straight across when worn.
I'm 163cm and I can wear this as a dress, but if you're taller it would be more of a tunic/long shirt.
There is a small defect (4th photo) where you can see the seam coming apart slightly in the light; it's not noticeable when worn.
Let me know if you have any questions!