The Wall of Love

S1 E3: Life as a married couple is put to the test when Helene and Thomas are invited to dinner at Peter and Susanne's house. Will the two cops seem like a real couple? When Thomas tries to approach the enigmatic Michelle, he finds himself in trouble. Michelle is suspicious, and Thomas gets tangled up in a lie-and ends up taking part in an illegal car race. Meanwhile, they uncover new leads in the case.