On this page of the Cyberpunk 2077 game guide, you will find a detailed walkthrough for the M'ap Tann Pelen mission.
Judy has found recordings on Evelyn's behavioral chip that helped establish interesting facts. Evelyn Parker was hired by the Voodoo Boys gang to record a braindance in Yorinobu's apartment, whereas she wanted to expose them and steal the Relic for profit. Time to find the gang of netrunners.
Call Mr. Hands (Call Mr. Hands)
When you mention that you need to contact the head of the Voodoo Boys gang, Mr. Hands will say that Maman Brigitte is the boss there and she's not so easy to get to. The fixer promises to make a good job of it and will speak to you later.
Go to the chapel
Go to the chapel at Sloane Lane. If you arrive at the wrong time, lean on the railing and wait for the church to open. Go inside and wait a while in the crowd, at the altar.
One of the Voodoo Boys messengers will come up to you and tell you to go to the butcher's store and ask about Placide.
Go to the butcher shop
You will find the butcher's store in a nearby shopping center. Go inside and ask about Placide, like the messenger recommended. Afterwards, look at the camera on the left and let yourself be identified, then go through the door on the right to the back of the store.
Talk to a gang member and inform him why you came here. Then follow Placide to another place to discuss the details in private. Along the way, he will tell you about GIM (Grand Imperial Mall), the largest shopping center in Pacifica, which was taken over by the Animals gang.
Talk to Placide
You will reach the office in Batty's Hotel. Connect a private link to your laptop to see the details of the order. On the recording you will notice a van filled with netrunner equipment, which after a short while disappeared completely from sight. V must find out who the mysterious netrunner in GIM is and what he wants. You will automatically move on to the next main task, I Walk the Line.