His long greasy hair was partly covered by the dark gray hood of his sweatshirt. It didn’t matter, it wasn’t raining. The hood was more a way to hide, than a mean to protect from a bad weather. As if trying to be invisible, in unattractive and two sizes too large clothes, he was observing from a distance. The strand of black hair falling over his deep blue eyes didn’t seem to bother him. Whatever he was looking for, he would not miss it. He was watching everything around, listening to every noise, not missing even the simple buzz of a fly passing by. However, his focus seem to always come back on the other side of the street. More precisely on the brown door of an apartment building. His right foot was slightly pacing without him noticing it. Firmly holding a piece of paper in his hand, he was so tense that his nails left marks on his palm. The door finally opened. His body tensed up even more than it already was. He took a deep breath, then took a first step toward the man.