Invariant-mass distribution of $\rm{D}^{0}$ candidates and charge conjugates in the $1 < p_{\rm{T}} < 2$ GeV/c interval in Pb--Pb collisions at $\sqrt{s_{\rm NN}}=5.02$ TeV for the 0-10% centrality class. The blue curve shows the total fit function (signal + background), the gray dashed line represent the combinatorial background function, while the red dashed line represents the background fit function, with the distributions of reflections included.