In the third episode of "Memory of a Killer," Angelo drives home from Dutch's birthday celebration, reflecting on the events that transpired the night of Dr. Robert Parks' murder. He laments his missed opportunity to shoot Parks, who pressed a distress signal and fled the lab. Later that night, Dutch's cousin, Eddie, arrives at the restaurant to inform him that an Internal Affairs detective named Marco Garcia is investigating Dutch's company. The detective has evidence against McGee and Angelo, the two assassins working for Dutch.
Together, the four men discuss how Garcia will soon be submitting evidence to the US Attorney's Office. Dutch orders the assassins to kill the detective, making it look like an accident, with Angelo taking responsibility for the murder. Meanwhile, Dutch reveals to Angelo that he worked with Eddie in the past when the NYPD was investigating him. This revelation surprises Angelo, who is unhappy with Dutch for hiding this detail.
The next day, Maria starts to panic as she hears gunshots while doing everyday tasks like buying groceries. She decides to stop letting the incident weigh her down and asks Dave to help her acquire a shooting license. Dave takes Maria to a shooting range and helps calm her nerves by shooting targets. He brings up an incident from their past, but Maria ignores his comment.
At the same time, Joe hacks into the CCTV footage at Detective Garcia's house and learns about his son, Danny (Samurai Lord), and his involvement with drugs. Joe meets Danny at a local park and orders drugs from the young man for a party that he is hosting. Danny falls into the trap and befriends Joe, inviting him into his apartment. Joe and Angelo go through the trash from Garcia's and learn that he was diabetic.
In this episode, the tension builds as characters grapple with their pasts and present situations, each moving closer to a dangerous confrontation that will shape their futures. The suspense and intrigue of this story keep viewers on the edge of their seats, eager to see how it all unfolds.
Meanwhile, Angelo comes across Earl in a diner and brings up The Ferryman. He asks Earl to come clean about the night at the bar where he overheard a conversation about the bounty on Maria. Angelo claims that Earl is being used as a messenger and threatens to kill him, urging him to leave their town. Later, Angelo decides to kill Garcia by spiking his insulin. Joe also helps track down Garcia and shares his location with Angelo.
Angelo finds Nicky's necklace in his apartment, so he goes to her bar to return the item, trying to explain why he had the gun in his freezer all that time. Nicky is worried about Angelo's involvement in Carl's death and that she will be framed just by being associated with him. Just then, Nicky's mobster boyfriend, Lorenzo, shows up at the bar and acts territorial towards her. Angelo leaves the bar to follow Garcia and finds him entering a caravan. He overhears him having a conversation with McGee.
It turns out that McGee was the one providing evidence to Garcia to frame Eddie and Angelo. Angelo tells Dutch about McGee's betrayal and the two discuss how to resolve this. Elsewhere, Dave receives a call about a dead body discovered nearby. He tries to send Maria home in a taxi, but she offers to ride along. At the scene of the crime, Maria recalls seeing her mother's lifeless body next to the victim, who is actually Henry Bloch.
The next day, Angelo runs into Agent Grant at a local convenience store. The two have an awkward conversation as Grant seems suspicious of Angelo, who is trying his best to seem as normal as possible. Over dinner, Angelo learns about Maria's meeting with Dave and her guilt over meeting the cop in Jeff's absence. She mentions Henry's dead body, which reminds Angelo of the article she discovered in his jacket. Angelo makes up a lie about the article to regain Maria's trust.
That night, Angelo, Eddie, and Dutch meet McGee at a restaurant, where they discuss ways to kill Garcia. Angelo asks for McGee's help with the murder and to bring drugs to the LA detective's house.
At Garcia's place, Joe drugged Danny and knocked him out while Angelo killed McGee. The two framed Danny for killing McGee, and Joe sent a text to Garcia using Danny's phone. They set up a camera in Danny's room to capture Garcia getting rid of McGee's body to save his son.
Angelo found Garcia burying McGee's body and threatened to expose Danny if he continued to investigate him and Eddie. Angelo called Dutch to inform him about the job being done, but ended up calling Maria instead. That night, Angelo talked to Dutch about Garcia, while the assassin told his boss how he would appreciate not being kept in the dark about any future NYPD investigations.
That night, Nicky showed up at Angelo's apartment, revealing that she had ended things with her mobster boyfriend. Nicky ended up in Angelo's bed while he wondered who The Ferryman was.
The episode ended with Angelo meeting Wesley, accusing him of working for The Ferryman and asking to meet the guy.
